The move to beef up communications expertise at the prominent Silicon Valley venture firm continues: Sequoia Capital has hired Andrew Kovacs, a well-regarded senior manager from Google, for a new job to help its portfolio companies with public relations and other related issues, sources said.

Google’s top flack Rachel Whetstone told staff about the move this past week, sources said, which will take place in mid-January.

Kovacs (pictured here, looking very GQ), who has been at the search giant for five years, has most recently headed PR for its apps unit.

His appointment comes after competing firms, including Andreessen Horowitz and Kleiner Perkins, bolstered talent to the comms areas of their firms, in order to better service the companies they invest in.

This is especially important to early-stage start-ups and their often young entrepreneurs, who usually have little experience with the media or with marketing. But such expertise is increasingly important in the crowded and ever-noisier tech sector, as companies try to rise above the fray.

Sequoia already has a longtime marketing partner, Mark Dempster, to whom Kovacs will be reporting, serving the firm’s companies in the U.S. and Israel. Kovacs will not be working on PR for Sequoia itself.

Some of Sequoia’s better-known start-ups include Dropbox, Tumblr and Eventbrite.

However, that’s a significant improvement from 2010. Tumblr had more downtime in two months in 2010 than in the first 11 months of 2011, Pingdom said. This year the longest Tumblr outage was three hours, compared to almost 24 hours last year.

To be fair, that unreliability probably stems from Tumblr’s quick growth. It now has 37 million blogs, up from 11 million a year ago.

Meanwhile, Pingdom’s measurements found that Blogger was by far the most reliable blog host. It had uptime of 99.998 percent in 2011, which Pingdom gushed was “highly impressive” and way better than might be expected for such a large Web site.

That strikes me as off, given that Blogger had an outage of more than 20 hours in May, which it attributed to data corruption. I’ve asked Pingdom for clarification.

Pingdom said TypePad and WordPress also had more than 99.9 percent uptime this year, while Posterous was just under that.

Foursquare co-founder Dennis Crowley sold his company, Dodgeball, to Google in 2007, but he left two years later complaining about the lack of resources devoted to his start-up by the search giant.

Crowley called the experience the “perfect storm of bad timing.”

But that sentiment has apparently shifted considerably. Now, Crowley looks back on his Google tenure as valuable — and said that he’s feeling a lot friendlier toward Google these days.

“You know when people leave a job and they say they didn’t know what they came away with after two years? That’s how I felt when I first left Google,” Crowley said in an interview with AllThingsD. “But I’ve been able to spend time with the folks at Google and reconnect with people there. And now when things come up at Foursquare, [they're] all the challenges and issues I realize I already encountered at Google.”

Could that mean even closer relations in the future?

Crowley declined to elaborate on the substance of his talks with Google, which, in some cases, are with business development teams.

But what about the possibility of another acquisition?

“I wouldn’t disqualify anything,” he said. “The thing that’s important to us is doing the things we want to do, which could be partnering with someone, or it could be continuing to grow the product independently.”

While that’s appropriately vague enough, what is clear is that where Foursquare goes from here is a big question going forward.

Most especially, while it still remains the cool kid at the check-in party, especially as more competitors are checking out — is the party dying down?

Foursquare now claims 15 million users, adding the last five million in just the last six months, a fact it often points to as a sign of success rather than to its aggregate number of downloads.

As a basis for comparison, the popular mobile photo-sharing app Instagram recently touted it had attracted between 14 and 15 million users, amassed in just over a year.

There is no doubt, though, that Foursquare started with a similar bang. Based in New York, the start-up first launched in 2009 as a mobile social networking site that tapped into the inherent GPS capabilities of smartphones.

It was not that unlike the idea behind Dodgeball. But this time, Crowley, along with Naveen Selvadurai, created a fast-growing mobile app that allowed users to broadcast to their friends where they were, while also earning badges and mayoral bragging rights for visiting certain locations.

It took off from there, with Crowley and Foursquare featured in splashy magazine takeouts and even in an ad for the Gap, portrayed as the toast of New York’s entrepreneur scene.

By the spring of 2010, the hot company was reported to be weighing offers from both Yahoo and Facebook, which shortly afterward introduced its own check-in function called Places.

Neither of those deals happened, and this past summer, the company raised $50 million in funding from Andreessen Horowitz, O’Reilly AlphaTech Ventures and others.

That move sent a clear message: We’ll grow ourselves, thanks very much.

Still, despite the cash, Crowley is careful to note that he realizes that times have changed in the location space.

While he said he believes that social media is moving away from the idea of just one news feed, the growing popularity of apps such as Twitter, Tumblr, Instagram and Path imply that consumers have an appetite for multiple apps.

And while data shows that consumers are becoming increasingly aware of geolocation services, it also indicates that the location-based craze hasn’t really caught on yet.

Crowley said he doesn’t put much stock in the most recent Forrester Research report on location-based services. He noted that three years ago Twitter was known as the online network for broadcasting what people had for lunch, before it became recognized as a game-changing technology tool.

That said, a handful of other location-focused companies — Hot Potato, SimpleGeo and early Foursquare competitor Gowalla, as well as Pelago, which was bought by Groupon — have all been absorbed by bigger tech companies in the past 18 months, their value less than expected by eager investors. Instead, they were bought mainly for their entrepreneurial and engineering talent rather than their product or user base.

That’s left Foursquare standing tall, but largely alone.

Crowley said that if the company had to focus on one area right now, it would be nearby discovery, fed by the database that’s been built up over the past two and a half years. He even went as far as to say there’s been a de-emphasis on the flagship “check-in” feature, citing evidence that more people are using the app to get tips without actually checking in.

Within the app, which is available on iOS, BlackBerry and Android, users can also follow friends, get tips on local venues and make to-do lists. Its most recent feature, Radar, pings users when they’re near venues they’ve indicated they want to check out, or in this case, check into.

And, with regard to Foursquare’s other high-profile feature — badge-earning — Crowley likened the whole element to the movie “The Karate Kid.”

“It’s like Mr. Miyagi having Daniel paint the fence, and later he realizes he’s been practicing karate,” Crowley said. “Badges are an important onboarding tool, but from the beginning we’ve said the important thing was data, and now we’ve gotten our users to leave all of these data signals.”

Crowley hinted at more differentiating products coming down the pipeline, and said he wouldn’t be surprised to see more consolidation and sharing among social networking apps, as well as more acquisitions within the industry.

With more than 800 million active users in Facebook’s network, Foursquare might become even more interesting to Google, which has jumped into the social networking space with Google+. Now Foursquare and Google share a common rival in Facebook, which may also help them make up their past differences.

Whether Foursquare could be the buyer, or one of those acquisitions, remains to be seen.

Since leaving the White House, McLaughlin served as executive director at Civic Commons — a nonprofit dedicated to apps for local government — and taught a class at Stanford Law School.

McLaughlin was a key voice in Google’s internal debates about its operations in China five years ago, which is a huge issue for social media companies.

You can find McLaughlin’s Tumblr, where he posts a few photos a month, here.

New York-based Tumblr runs 36.5 million blogs and has a staff of about 60.

Snip.it is functionally very similar to a bookmarking service like Delicious, allowing users to share pages through a browser bookmarklet and group them in thematic connections. Other users can then subscribe to those collections.

Start-ups like Tumblr and Pinterest thrive in part because users can express themselves through content that other people have posted. Often it’s far easier to pin or reblog a photo or quote than to compose a blog post or a pithy tweet. Snip.it hopes to extend that kind of activity to sharing news stories and other content accompanied by a line or two of opinion from the poster.

Snip.it launches an invitation-only beta today and should be open to the public in about a month. At this point it requires a Facebook account to register.

The company is funded by Khosla Ventures (where Adeeb was formerly a principal), True Ventures, Charles River Ventures and SV Angel.

Obama’s Tumblr launched today with a couple of casual posts that are clearly not written by the president himself. An anonymous staffer writes that the Obama reelection campaign plans to use Tumblr as “a huge collaborative storytelling effort.” That will be done using Tumblr’s popular reblogging feature to pull in content from other Tumblrs, as well as direct user submissions.

The best part is a meek plea for decency, so rarely found in political discussions online.

There will be trolls among you: this we know. We ask only that you remember that we’re people — fairly nice ones — and that your mother would want you to be polite.

Here’s USV principal’s Fred Wilson’s comment, via email: “Union Square Ventures is very fortunate to be able to add Andy Weissman to our partnership and we think he is a perfect fit for the entrepreneurs we want to work with and the sectors we want to participate in.” (More below.)

That will cause a small ripple in startupland, because Weissman was the one steering Betaworks’ investment portfolio. His partner John Borthwick handled the operational parts of the business, which has founded and/or nurtured startups like Summize, TweetDeck, Chartbeat and Bitly.

With Weissman’s departure, Betaworks’s focus will change. “Though we will continue to do seed stage investments, our primary focus will be on building the core capabilities of the companies that we acquire and grow in-house,” Borthwick said told his employees via email today. Betabeat first reported the news.

What Borthwick didn’t explain in his email is that he and Weissman had previously planned on raising a “sidecar fund” that would essentially split Betaworks into two businesses: An operating company run by Borthwick and an early-stage VC shop run by Weissman.

But that plan was discarded this summer, at least in part because of opposition from Betaworks’ investors, who include RRE Ventures, Intel, AOL and the New York Times. Investors argued that they had put money into a company where investing was only a component of the plan, not a full-time occupation; by raising a new investment fund, they argued, Betaworks would essentially be competing against some of its backers.

People familiar with the company say that the plan’s collapse didn’t lead directly to Weissman’s departure. But the backstory does provide context to his move to become a full-time venture capitalist.

When Weissman lands at Union Square, he’ll have plenty of money to work with. The firm, which has made a series of lucrative bets in high-profile Web 2.0 start-ups including Twitter, Zynga, Foursquare and Tumblr, is in the midst of raising a new $150-$200 million fund.

Four-year-old Betaworks, which now has more than 80 employees, ought to have plenty of money to work with, too. In addition to the $28 million it has raised to date, the company has also been able to turn some of its investments into cash via secondary market sales.

Most notably, it has recently sold Twitter shares it acquired in 2008, when the company bought search engine Summize. That alone should provide a nice cushion for Betaworks if it needs it: Twitter’s value has shot up from $100 million to $8.4 billion over the last three years.

And speaking of ripples, here’s one I’m guessing Weissman may enjoy:

So, Vizualize.me, an infant company based in Toronto, is trying to dig through piles of personal data and reinvent the resume for our modern data-driven world.

Why this unenviable task?

“People aren’t even really reading [resumes] anymore,” said Vizualize.me CEO and founder Eugene Woo. “They’ve gotten too long, and they just aren’t useful.”

In other words, resumes are due for a good shake-up.

Vizualize.me has built a Web app that ingests a user’s work history and then spits out a design-y timeline, with details about each experience layered in.

Data like this is often messy, so, rather than trying to get users to manually enter their work history, Vizualize.me just connects to LinkedIn, pulls out the already-structured data, and converts it into the visualization.

The end result is something between an About.me profile page and a project manager’s colorful Gantt chart.

It’s a neat concept to lay out collected work history on a single digital page. And the result isn’t bad-looking either, even if it has some of the roughness that is unavoidable in a bootstrapped beta release.

Still not sure what you might use it for? Apparently you’re in good company.

Woo isn’t sure, either. “We’ve gotten a lot of interest from recruiters who want to sift through many resumes quickly,” he said. “But most of our users want to use the visualization as part of their own resume.”

Although a business model seems a ways off, Vizualize.me will likely be able to grow its user base thanks to the Internet’s penchant for navel-gazing.

And gaze it does. To date, there are about 175,000 users in line for a beta invite.

But, like anything else that looks simple and elegant, creating robust visualizations of resume data is actually pretty hard, according to Woo.

That’s because they require precision, and users are sensitive to things like unseemly gaps in work history that might force them to talk about that ugly two-year addiction to World of Warcraft.

Woo also seems to have his work cut out for him technologically as well. He hopes to add many more visualization styles, or “themes,” to borrow a term from microblogging site Tumblr. But he says that themes for data visualizations are much harder than just making a Tumblr theme.

Said Woo: “Ours have to be coded to work and not just look good.”

Assuming the product improves, Vizualize.me, and data visualization products like it seem to have a pretty good growth potential.

Because one thing is clear, our piles of personal data aren’t getting any smaller.

Here’s Woo talking about all that and more: