According to a tipster, Marissa Mayer, (not) everyone's favorite Google VP for products, San Francisco society diva and baking wantrepreneur, turns 33 today. Valleywag never forgets its friends, so guess we got you a present, Ms. Mayer! Check it out, below.

A group of Googlers, including ubiquitous trend-upsetter SVP Marissa Mayer, did their song and dance for the press at a "factory tour" on the Google campus in Mountain View today. The big news? The official launch of Google Health, which offers features like a doctor finder and the ability to upload and track your medical records. Already, the privacy concerns are mounting.

Google has been hoping to get more market share in China, but surely not this way. A tipster sends in this photo of bus ads in Xi'an, China, advertising "Googirls" with the search engine's familiar candy-colored design. Is this another Marissa Mayer project? Suggest a caption in the comments. The best one will become the new headline. Wednesday's winner: "The first rule of Hair club is you do not talk about Hair Club," by FlakJack.

Ask.com bungled the spelling of Cinco de Mayo, but at least they made an effort. Pictured here are Yahoo's animated mariachis and dancers. But Google, the company well known for its holiday flights of logo fancy? Nada. Yes, it's actually a minor holiday south of the border. But the victory in Puebla over the French has gone unnoticed in the Googleplex for the ninth year running.

Google VP Marissa Mayer attended the San Francisco Ballet's New Work's Festival on Friday and she brought along all her favorite friends. These included Mayer's manfriend, real-estate fund manager Zack Bogue, who, for reasons unknowable hasn't starred in a season of ABC's the Bachelor yet. Mayer's outfit is "a softer, [more] feminine look than we usually see from her" reports SFLuxe — but check out Googler Orkut Buyukkokten's suit, below. It's a Roberto Cavalli, darlings.

Lily-white couture aficionado Marissa Mayer is a champion of her gender at Google, struggling to ensure that 25 percent of its engineers are women. How is she doing on other measures of diversity? Google has come under fire from Congress for offering H-1B visas to foreign workers rather than increasing its numbers of African-American hires. Perhaps the problem lies in its executives' social circles. A collage of Mayer's Facebook friends in the Google network reveals very few faces that are not white or Asian.

This Saturday, the Castilleja School, an all-girls' college-prep academy in Palo Alto, has invited Hewlett-Packard CEO Mark Hurd, Google fashionista Marissa Mayer, and Wikipedia founder Jimmy Wales to a symposium on leadership. What, exactly, does Wales propose to teach, I wonder?

Google search czarina Marissa Mayer explains her "personal style philosophy" — or, at least, that of her personal shopper and the staff at Bergdorf's — in a comprehensive if hardly hard-hitting followup to the launch of iGoogle's designer themes in the Wall Street Journal. Yes, the woman who showed up to her first interview in a sweater from Macy's INC International Concepts line is being crowned as a new tastemaker. Even as the economy takes a nosedive, Mayer jokes about being an unrepentant label chaser:

The Google homepage today features a photo of chrome tulips by famous artist Jeff Koons. Google has hired a bunch of artists and designers to create themes as a way of promoting the iGoogle homepage. And their choices read like a veritable "who's who" of name-brand, commercial types who create work that isn't particularly daring or challenging.

Google-backed researchers Shumeet Baluja (pictured) and Yushi Jing presented the Mountain View company's latest image search and recognition efforts to an audience in Beijing, China on Thursday. VisualRank attempts to do for images what PageRank has done for typical Web pages — rank them in search results according to "authority," which will presumably increase the relevance of results. Problem is, their limited success came at a cost Google is typically loathe to pay: 150 units of homo sapiens who helped sort and rank the images by hand. Munjal Shah, CEO of image-search startup Riya, remarked to the Times: "I think what they're trying to accomplish is largely impossible." Funny, because large-scale, advanced image recognition is what Marissa Mayer says will solve Street View's privacy conundrum.

Google doesn't serve advertisements against image searches, as it does with normal search results. This costs the company as much as $200 million in annual revenue, Google VP Marissa Mayer told KQED's Michael Krasny in this clip. So why does Google hold back? Mayer says the search engine is looking out for the user: "Our metrics show us that people would actually start using image search less. Not a lot less, but about 1 percent less. We actually value the user so much that we said no." Cute. But what about the shareholders? The plummeting dollar won't save Google every quarter.

Google's business goal is to organize the world's information. Ambitious. Google's goal for hiring women engineers? "We're very focused on having about 25 percent of our technical workforce be women," Google VP Marissa Mayer tells a Bay Area public-radio interviewer in this clip. Google's cupcake princess added that Sergey Brin — he's the cofounder she didn't date — and Larry Page — the one she did — came up with that target shortly after they founded the company.

Google VP Marissa Mayer likes cupcakes, we learned in Julian Guthrie's profile of her for San Francisco magazine. Mayer likes them so much that the Google exec once created a spreadsheet to maintain a detailed record of the ingredients that go into her favorites. Mayer is not, however, in the cupcake business, she corrects KQED's Michael Krasny in this clip. She's in the cake-sculpting business, thank you very much. Krasny was likely alluding to Mayer's investment in San Francisco art-bakery I Dream of Cake. Mayer, dubbed "Googirl" by San Francisco, is really into frosting: "Vanilla fudge is my favorite. It gives you brain euphoria," she told the magazine.

Is it jet lag that causes executives' lips to loosen overseas? Surely Google VP Marissa Mayer must understand that words uttered in Australia will reach California much faster than a Qantas flight. Her indiscretion down under: Backing away from Google's informal motto, "don't be evil," in an interview with the Sydney Morning Herald. "It really wasn't like an elected, ordained motto," Mayer told the newspaper. "I think that 'Don't Be Evil' is a very easy thing to point at when you see Google doing something that you personally don't like." Mayer then gave this dodge when asked if Google should be held to a higher standard than its competitors:

In a perfect world, humans would be encased in tubes, their body heat powering massive datacenters and their minds chained into a virtual reality that involves clicking on lots of text ads online. That's according to Marissa Mayer, who blames "flaws of the real world and human error" for Google Street View's many invasions of privacy. The remarks came in an interview with the Sydney Morning Herald as Google prepares to release it's creepy-but-useful technology down under. But don't worry, they're working on an alogrithm to fix the problem — and if it's anything like the algorithms used to detect copyright infringement on YouTube, we'll be living in the Matrix before it's done. That is, if we aren't already.(Photo by Mark Levin)

Even after a recent update, Google Street View's little yellow man wouldn't venture down Google VP Marissa Mayer's expensive alley. But MapJack's "Jack" mascot knows such privacy is an illusion. The rival to Google's 3D mapping service happily goes down Marissa Mayer's residential street. Below, see the street San Francisco cupcake delivery boys know so well.

We thought maybe Google barred its little yellow Street View man from Marissa Mayer's road by accident. But, as the saying goes, "Fool me once, shame on — shame on you. Fool me — you can't get fooled again." Google Earth Blog reports that Google has updated its Street View feature with new maps throughout flyover country, as well as enhancements in the Bay Area. But did the camera trucks visit Mayer's little corner of Stevenson Street? See for yourself, below.

A reminder: Marissa Mayer lives on the 38th floor of the Four Seasons Hotel in San Francisco, and you don't. With that address comes an unusual perk: Her own personal stoplight at Third and Stevenson. Mayer and the other residents of the concierge conclave have arranged to pay the city $165,000 for a traffic light at the dead-end street which leads to the hotel garage. (Remember that as you sit on a 9X Muni bus, waiting for the light to change.) Perhaps the light will make it easier for Google Maps, which Mayer oversees, to send a driver down Stevenson. Mayer has defended Google's Street View feature against charges of invading people's privacy — but Google's camera-cars have yet to venture onto her street. After the jump, minutes from the city meeting (PDF) accepting Mayer's gift:

After Marissa Mayer announced Google Health on Google's blog, Capital Valley blogger Andrew Feinberg linked to the post in a reponse titled "Google Health is Frightening." Per usual, a link to Feinberg's post appeared in the trackbacks under Mayer's post. For a time. But soon Feinberg noticed his trackback disappeared. In fact, all the trackback links were gone. Feinberg told a CNET reporter, who in turn asked Google PR what happened. Soon the links were back. Now Feinberg wonders if Mayer nixed the trackbacks due to his critical commentary. We're skeptical. The more likely culprit? A link to Cade Metz's story in The Register headlined "'Googirl' unloads on Google Health: A seminal moment." Just like Feinberg's story, Metz's story links to Google's post. But unlike Feinberg's, it's still not to be found in the trackbacks.

Last quarter, Google hired 889 people, bringing the total headcount to 16,805. What do all these new employees do? Stab each other in the back, apparently. A tipster writes: "The management within Google, especially AdWords and AdSense (the money making machines of the entire company ... engineering gets the glory but advertising brings in the big bucks) are completely disorganized and chaotic (in a BAD way- because Google sometimes tries to spin the whole 'chaotic' thing in a good way)." There's much more: