Who wants to pay for paidContent? We’ll find out soon, it seems, because the sales process for the pioneering blog and its parent company ContentNext appears to be wrapping up.

But if you were making a bet, you’d get good odds that the most likely buyer will be GigaOM, another pioneering tech/media business.

People familiar with paidContent believe GigaOM is in the last stages of a deal to purchase the site and its related businesses from Guardian Media Group, which bought the company in 2008 and then put it on the block last fall.

I asked the Guardian about the sale on Friday, and a PR rep told me that “the sale process is ongoing. Beyond that we would not comment.” Last night, I corresponded with GigaOM founder Om Malik, via text message, but he didn’t respond to my question about a potential acquisition.

That’s certainly not the same as a confirmation. But there’s some pleasing logic to a GigaOM/paidContent rollup. Both businesses started as influential one-man blogging operations, then added staff and moved into related operations such as conferences. (Full disclosure: AllThingsD competes with both companies.)

PaidContent founder Rafat Ali left his company a couple years after selling to the Guardian. Malik has sold off chunks of his business to venture capitalists such as True Ventures (where he is now a venture partner) and Reed Elsevier Ventures, who have invested a total of $15 million.

Depending on the price, you could find other strategic buyers that could be interested in paidContent. But I’m told that two of the most logical buyers — WebMediaBrands, which has been stocking up on tech industry publications including Inside Networks, and SAY Media, which recently bought tech blog ReadWriteWeb in December – aren’t in the running.

Other possibles not in the bidding, according to sources: Jim Bankoff’s Vox Media, which owns The Verge tech site; and Dow Jones (which owns this site).

The only other big bidder to consider would be AOL, which owns Engadget and bought TechCrunch in 2010. Sources there said a bid was unlikely, too.

The British newspaper publisher has hired boutique bank Coady Diemar Partners to market the company. People familiar with the sale believe the Guardian is looking for something in the $15 million to $20 million range for the property, which would let it recoup its initial investment and subsequent infusions of working capital. [UPDATE: Or something much less! A rep for the company's  Guardian News & Media unit says, via e-mail, that the $15-$20 million aspiration is " is not a figure we recognise."]

The move, which the company has contemplated for the last year or so, comes as the British newspaper publisher is going through a cost-cutting round while simultaneously gearing up for an attempt to create a U.S. foothold, via a New York-based Web operation. Alan Hudson, a Bank of America executive hired by the Guardian this summer to “oversee the company’s investment portfolio,” is overseeing the sale.

Here’s a statement from a Guardian PR rep, sent in response to my query about the sale:

“Following a strategic review Guardian News & Media has decided to seek a buyer for ContentNext Media. ContentNext is a high-quality asset but our focus in the US is on building the Guardian. It’s early days but we have received several expressions of interest and are talking to a select number of potential buyers.”

In addition to its flagship PaidContent site, started by founder Rafat Ali in 2002, ContentNext also operates three other “verticals”; like many Web news publishers (including this one), it also operates a conference business.

Ali left the company in the summer of 2010.

Guardian Media has one for sale. The British publisher is peddling the “Inside.com” domain name, people familiar with the company tell me. Asking price, I’m told, is something north of $100,000.

If that name rings a bell, it’s probably because you used to dine on big, well-prepared plates of media-covering-media during the first boom, when Inside.com spent a lot of money trying to create an industry insider/outsider publishing business.

That didn’t work, and eventually paidContent’s Rafat Ali, an Inside.com veteran himself, bought up the domain in 2008.

The idea was to use the name as an umbrella for his collection of trade sites, and perhaps to help Ali open up a Hollywood outpost. But that never panned out, and if you head to Inside.com now it will direct you to paidContent.

Ali ended up selling that site and its parent company to Guardian Media in 2008, and left two years later. The British company once had aggressive plans to expand in the U.S., but it’s unclear what it intends to do now. Caroline Little, who was running American operations for the publisher, stepped down earlier this year.

I’ve asked Guardian for comment and will update if it has one.

On BoomTown’s recent grand tour of Europe, I paid a visit a week ago to London to moderate some sessions at Media Guardian’s Changing Media Summit 2009.

As in the U.S., a lot of the same questions were asked there about when and how the new media business would cross the Rubicon to transform into a strongly profitable and sustainable enterprise.

Via advertising? Subscriptions? Product placement?

“We’ve got to get to a place where we’re going to become an industrialized-sized business,” said one panelist at a session on monetizing such media, in what was a common question.

Well, considering how small the revenues in new media still are compared to traditional media, along with the recent negative impact of the econalypse, even a profitable popcorn stand would be an admirable achievement right about now.

Still, the room was packed at the Park Plaza Riverbank Hotel overlooking the Thames River and Big Ben, as people searched for answers.

One of the panels I moderated had the much-too-vaunted title of “The Future of Media: Capturing the Essence of Reinvention in the New Age.”

The panelists talked about what the media company of tomorrow looks like, as well as discussing the Next Big Thing.

The group included Ashley Highfield, managing director and VP, consumer and online for Microsoft (MSFT); Larry Kramer, former president of CBS (CBS) Digital and senior adviser to Polaris Ventures; Peter Smith, president of GE (GE) NBC Universal’s international unit; and Mike Volpi, CEO of video start-up Joost.

Here’s a video of interviews I did talking about all this and more while at the Guardian Media Group’s new digital-heavy offices in London.

It includes Volpi and Kramer, as well as Guardian-owned paidContent.org head Rafat Ali and the BBC’s tech news correspondent, Rory Cellan-Jones:

That’s the lesson you can learn by perusing 24/7 Wall St.’s list of the 25 most valuable blogs and comparing it to the version the two-man publication put together a year ago. Editor Douglas A. MacIntyre has given sharp haircuts to many of the Web publications he assessed last March. But not all of them.

MacIntyre thinks TechCrunch, for instance, is now worth about $25 million; last year he pegged the tech blog’s value at $36 million. Web 2.0 chronicler Mashable has taken a 75 percent drop, from $10 million to $2.5 million.

But MacIntyre also thinks that the uber-aggregator Huffington Post is now worth $90 million, up from $70 million a year ago, even though the site’s political coverage doesn’t have the same appeal it had last fall. And he thinks the most valuable company on his list, Nick Denton’s Gawker Media, is now worth $170 million even though (or perhaps because) Denton has been consolidating his list of titles. Last spring, MacIntyre thought Gawker was worth $150 million.

Since every one of these blogs is a small operation that provides little to no visibility into its financials, every one of these valuations is, at best, an educated guess. And it’s easy to pick nits or arguments with any one of MacIntyre’s valuations. But then again, those arguments are sort of the point of a list like this.

And it’s hard to argue with his overall thesis: The same advertising woes that have caused problems for Yahoo (YHOO), the New York Times and nearly every other big media company are being felt by the little guys too. Maybe even more so since many of the little guys were hoping that the big guys would snap them up, as Condé Nast did with Ars Technica and the Guardian Media Group did with PaidContent last year. Hard to argue that we’ll see deals like these in 2009.

Here’s MacIntyre’s top 10: You can see the full list here.

1.  Gawker Media: $170 million. Last year: $150 million.

2.  Huffington Post: $90 million. Last year: $70 million.

3.  The Drudge Report: $48 million. Last year: $10 million.

4.  Perez Hilton: $32 million. Last year: $48 million.

5.  Sugar, Inc.: $27 million. Last year: Not listed.

6.  TechCrunch. $25 million. Last year: $36 million.

7.  MacRumors. $21 million. Last year: $85 million

8.  SeekingAlpha. $11 million. Last year: $15 million

9.  GigaOm: $9.5 million. Last year: $8.4 million

10. Politico: $8.7 million. Last year: Not listed.

Actually, although BoomTown is staying right around the corner from Buckingham Palace in Mayfair, I am in London on my way to the PICNIC conference in Amsterdam later this week, where I will be interviewing some digital leaders onstage.

We’re still working on rolling out a version of our D: All Things Digital conference in Europe next fall, so it’s important to get a sense of what is going on here in the digital sector and, of course, what is not.

I was here in summer 2007 and also last fall. This trip, I am slated to visit Mike Volpi of Joost to talk about what’s going on at that much-hyped online video site, which is in the midst of rejiggering itself after a rocky start.

I will also be paying a call on the fine folks over at the Guardian, including its PDA digital content blogger Jemima Kiss.

The Guardian Media Group, the newspaper’s parent company, is doing some really fast-forward things in the digital arena, including the recent purchase of the paidContent new media news site.

And tomorrow, I will be having yet another grilled kipper breakfast at the very tony Wolseley restaurant with Index Ventures’ Danny Rimer to talk about the start-up market here.

Videos, of course, to come.

With the sale of paidContent to the Guardian Media Group and the talks TechCrunch has been in with AOL, there certainly is a lot of hubbub around tech blogging sites of late.

One of the more interesting sites that has gone up over the last year is Silicon Alley Insider, which is headlined by former Internet analyst Henry Blodget (yes, that Henry Blodget).

But featuring Blodget’s speedy analysis of big trends, and news about Web and media players, with a sprinkling of reporting from its small team of writers, it’s been a sharp entrant into the sector.

Perhaps most compelling is that the site is backed by Web 1.0 entrepreneur Kevin Ryan, former CEO of DoubleClick (GOOG), who has nested SAI inside a network of new Web efforts at AlleyCorp.

Ryan founded what is essentially a Web 2.0 version of an incubator with former DoubleClick CTO Dwight Merriman.

While one can debate DoubleClick’s ads-in-your-digital-face strategy over its growth (it is now a division of Google), there is no question Ryan’s aggressive early efforts set the stage for the commercialization of the Web that continues today.

Now Ryan is trying to do the same for Web content on SAI. It just got a new small slug of funding; Blodget is also adding two new business sites to the mix.

What AlleyCorp all means is a bit eclectic. Ryan’s network of affiliated sites includes the content delivery network Panther Express, the 10gen apps development platform, a shopping engine called ShopWiki, the Music Nation independent music community and an online invitation-only, high-fashion sample sale site called Gilt Groupe.

Although SAI has a high profile, Gilt is perhaps the most intriguing of AlleyCorp’s sites since it is essentially an American copy of a highly successful European version.

Using the Web’s speed and the allure of an exclusive, limited sale of designer clothes, along with an Amazon-like shipping system, is perhaps the perfect mix of offline and online. It also has to potential to move into other e-commerce categories.

Here’s my video interview with Ryan about all this and more:

I have posted below a video interview with ContentNext’s founder Rafat Ali, who spoke about the deal. I caught up with him in his New York hotel this morning (by coincidence I flew into New York today on a redeye).

But the deal–which comes after the mid-May sale of Ars Technica to Condé Nast for a reported $25 million–begs the question of which tech blog might be next to be acquired.

And, after much noisy poking around today, BoomTown is giving the nod to one of the sector’s larger and splashier sites: TechCrunch.

Several sources told me TechCrunch has been in off-and-on talks recently with Time Warner’s AOL (TWX), which wants to pay from $20 and $30 million for the site.

I could not find out what price TechCrunch thinks is fair, although one might assume it is higher than that.

TechCrunch CEO Heather Harde told me via email that she had no comment. “My policy is not to comment on rumors of our business,” she wrote.

TechCrunch, which was founded in mid-2005 by Michael Arrington, is a group-edited blog that has grown large by focusing–”obsessively,” according to the site’s About page–on Web 2.0 start-ups, covering every jog and tittle of their life cycles.

Sources said the talks between TechCrunch and AOL have been ongoing for the past six to eight weeks, although the site has been in talks with several other large media companies interested in it in the past and these have not led to an acquisition.

AOL would probably be a good home for a site like TechCrunch, since it has a blog focus from its own Switched site and sites it bought, like Engadget.

AOL acquired that popular gadget site in 2005 in the $25 million acquisition of Weblogs, which was founded by entrepreneur Jason Calacanis.

Calacanis, by the way, runs an annual tech conference with TechCrunch, now called TechCrunch50.

Also, I have stayed in Calacanis’s house in the Brentwood (see post and video here), when I was interviewing a Disney exec onstage at a paidContent conference in Los Angeles recently.

Oh, yes, it’s a small tech blogging world after all.

But the money has suddenly become big for the sites involved in that universe too, although most still have relatively small businesses.

Nonetheless, tech bloggers have grown in number and influence, as sites–like this one–compete to break news and attract readers.

Such efforts take funding–despite the lower costs as compared with traditional media–and this probably means inevitable consolidation.

Before its acquisition by Guardian, for example, ContentNext had been raising several million dollars recently to fuel more expansion.

Other sites have also recently raised funds, such as GigaOm, Silicon Alley Insider and VentureBeat.

Most of them have also been talking about various roll-ups between and among one other. Sources told me that VentureBeat, for example, has spoken separately in the past to both paidContent and TechCrunch about joining forces.

VentureBeat’s Founder Matt Marshall would not comment on that, but did note that “size matters, so you have to do what you can to get the economics of scale.”

That includes adding on more sites and doing conferences, as VentureBeat has done (its new conference is called MobileBeat, for example, which will take place in Sunnyvale, Calif. on July 24.)

“Consolidation is what you are probably going to see,” predicted Marshall about the tech blogging arena.

Here’s ContentNext’s Ali talking about exactly that and more today:

In what will be seen as a new media coup, sources tell BoomTown that Britain’s Guardian Media Group is set to announce this morning that it will buy the company that runs the high-profile digital media news site paidContent for a price “north of $30 million.”

That price, though, includes an earn-out, sources said, which will depend on future performance of the company.

The paidContent site is owned by ContentNext and was founded by Publisher and Editor Rafat Ali in 2002.

With the motto,”The Economics of Content,” paidContent has been a pioneer in the online news space, doing high-quality reporting about online media and digital efforts by big media companies.

ContentNext has offices in Santa Monica, Calif., and Manhattan and operates several other sites, and also runs several conferences.

The company had reportedly been raising funding of several million dollars recently to fuel more expansion.

But ContentNext’s only financial backer so far has been Alan Patricof’s Greycroft Partners, which invested an undisclosed amount in 2006.

Longtime digital media exec Larry Kramer is on its board and ContentNext recently hired media exec Nathan Richardson as its CEO.

Sources said ContentNext would continue being run independently after the Guardian purchase.

This sale comes after the mid-May sale of Ars Technica, a much larger tech-focused site, to Condé Nast for a reported $25 million.

More to come soon.

But until then, here’s a video I did with Ali just over a year ago in a when I visited his then-new offices in Santa Monica.