In yet another small acquisition, Facebook has bought Chai Labs, several sources said.

BoomTown could not confirm the price for the purchase of the content-focused start-up, but it is likely to be around $10 million and directed at acquiring talent.

The Mountain View, Calif.-based Chai Labs, which was founded by former Google (GOOG) AdSense exec Gokul Rajaram, raised $1.1 million in funding last year, according to a regulatory filing, and $1.3 million before that.

On its Web site, Chai Labs says that advisers to the company include prominent Silicon Valley players, such as Marc Andreessen, Reid Hoffman and Joe Kraus, who appear to be angel investors.

Chai Labs describes itself as a “technology platform [that] enables publishers to easily customize and launch scalable, search-friendly sites in several verticals. We seamlessly complement our partners’ editorial teams, and some of our most compelling implementations have occurred when editors and journalists have worked side-by-side with our platform.”

The ability to help publishers create, store and deliver content is something that makes sense for Facebook, given the powerful social-networking site has been trying to work with media companies rather than compete with them.

Facebook declined to comment and Chai Labs has not responded to an email query.

Joe Kraus–the longtime Silicon Valley entrepreneur who sold his most recent start-up, JotSpot, to Google in 2006 and has been a director of product management since–has moved to its Google Ventures unit as a partner, said several sources.

Sources added that Kraus (pictured above) is likely to be the first of several well-known appointments at the relatively new venture arm of the search giant.

Google (GOOG) announced its VC play in March and said the fund will invest $100 million in “exceptional” start-ups over the next year.

“We’ll be focusing on early stage investments across a diverse range of industries, including consumer Internet, software, clean-tech, bio-tech, health care and, no doubt, other areas we haven’t thought of yet,” Managing Partners Rich Miner and Bill Maris explained in a blog post when Google Ventures debuted. “Central to our effort will be our fellow Googlers, whom we view as a critically important resource to help educate us about potential investments areas and evaluate specific companies.”

Well, that now apparently means Kraus, a serial entrepreneur who co-founded the Web 1.0-era Excite portal and, in Web 2.0, JotSpot, which made wiki-style software for online collaboration.

Currently, only Miner and Maris are listed on the bios page of Google Venture’s online site.

Since the acquisition, Kraus has been leading Google’s OpenSocial efforts to develop standards for social networking platforms.

Please see this disclosure related to me and Google.

In the interest of time-saving, we will group them all here in one easy list that you can clip and save.

DEALS AFOOT?:

Yes, there is always a lot of sniffing around out there, especially given that a lot of Web 2.0 companies are more likely to be acquired than go public.

Do look for smaller ad networks to be bought up in the wake of a spate of bigger sales of late–DoubleClick to Google, aQuantive to Microsoft, Right Media and BlueLithium to Yahoo).

Now, it looks like AOL might get into the game again, after presciently grabbing Advertising.com way back in 2004 for $435 million. The new target, in a deal that a source close to the company said is “80% there,” is Quigo–the content-targeting ad network. The price? About $300 million.

Less likely for action are some other names being bandied about.

WordPress (the blogging software and hosting company AllThingsD.com uses), for example, has some suitors and is contemplating a sale after some offers. But don’t bet on it.

And RockYou is not being bought by, say, Yahoo–at least not this week. While rumors of wild valuations for the No. 2 maker of widgets on Facebook (Slide usually outranks it) have been bandied about, it has not had any significant talks with anyone.

GOOGLE GETS FRIENDLY (EXCEPT TO FACEBOOK):

As we wrote in a post yesterday, contrary to rumors, the Google project (codenamed Maka-Maka, doubtlessly by that wacky pair, Graham Spencer and Joe Kraus, pictured here, formerly of JotSpot and Excite, who worked on it) was imminent. As in now. Right now. This instant.

Officially named OpenSocial, it is a way to create a social graph over the Web that is open to third-party apps friendly and, as I wrote, is indeed both a “real attempted assault on the Facebook platform or more of a way to widely spread the gospel of social networking (and, thus, an assault on the Facebook platform).”

While Google has signed a bunch of prominent partners, it has yet to grab the No. 2 social-networking site Facebook (unlikely) and the No. 1 MySpace (much more likely, but don’t hold your breath). But it’s definitely a put-up-or-shut-up dare by the search giant, especially given Facebook’s professed love of openness.

Who knows if it will catch on, given that it is clear it is all in the hands of the apps developer community. If not, it will surely be a big black eye for Google, if it can’t motivate widely beyond search.

FACEBOOK IS A BIG BOY NOW:

It looks like former Yahoo Mike Murphy–who heads ad sales at Facebook (and is pictured here)–is finally getting his ducks in order with a new ad offering to be called SocialAds next week at its big confab in NYC.

Unlike the competition’s contextual ad programs, this will be squarely aimed at people’s self-expressed interests and demographics.

And, of course, Microsoft will be Facebook’s partner in serving the ads, for now at least. Good lord, it has bought and paid for this date many times over, so a fine time must be had by all!

I can’t tell you how thrilled we are that Facebook (and that nice boy Mark Zuckerberg) is finally putting some meat on its skinny little business model to take advantage of its fast-growing popularity.

But let’s keep in mind that it remains to be seen how lucrative this kind of ad network is and how scalable it is across the Web (and not just on Facebook).

It will also be interesting to see if the offering is truly innovative and different than existing solutions–or if it just serves up some dumb and useless ad for blood supplies, because you happen to be playing Vampire a little too much.

(We’re teasing, Mark, but not very much at all.)

OH, YES, THAT GPHONE:

More open verbiage from Google, which will roll out a mobile-phone operating system of software and services for a new kind of open cellphone sometime in this millennium (are you as sick of the speculation about the Gphone as I am?).

Since we’re talked out, here’s a much better Wall Street Journal Online video on the subject:

BOVINE UPDATE

Yahoo’s holy cows? Still sacred and going strong!

Please see this disclosure related to me and Google.