It's no secret that it's hard out here for a pimp; pimps of all ages, colors, and creeds are looking for work, any work, any time, any place they can get it.

Twitter's longtime CEO Ev Williams was pressured out of his job, his spin to the contrary notwithstanding, multiple sources have told Fortune, corroborating what we've been saying for nine months. But why?

Somewhere on the way to the ultimate Silicon Valley jackpot, Evan Williams lost his grip on Twitter, the microblogging startup he co-founded. He's now out as CEO. What went wrong? So many things.

Running Twitter Inc. sounds like any entrepreneur's dream: Cash flows freely. The press is smitten. Celebrity users abound. But CEO and co-founder Evan Williams is said to be on the verge of being ousted from his microblogging paradise.

Twitter CEO Evan Williams is quietly attending the annual "CEO Summit" at Microsoft headquarters in Redmond, Washington, TechFlash reports, even though his second in command is busy at conferences too. We'd suggest sale negotiations, except that "Windows Live Twitter" sounds so very implausible and wrong.

The geeks at South by Southwest look docile, but online they turn against mutual enemies with ruthless efficiency. This year's victim: Umair Haque, the Harvard wonk whose interview with Twitter's CEO just turned into a virtual stoning.

Everyone expected Twitter to unveil an advertising strategy at the South by Southwest conference in Austin today; instead, the microblogging startup plotted further media domination Actual revenue is "going to take experimentation." Oy: That's a billion-dollar company talking. (Pic)

Kristen Cordle is stoked: The young executive assistant has abandoned the scary pirate captain of dying Yahoo to work for the CEO of red-hot Twitter Inc. She's already dissing her lame old company, and the competition.

Chris Lehmann went shopping for end-times food with end-times people; Kevin Smith prepped his readers for more ass talk; and Evan Williams tried to adjust your movie expectations. The Twitterati braced.

Kevin Pollak swore at someone who wished him happy birthday; Deborah Gibson swore at her elliptical machine and Fred Durst's waiter swore (probably) at him. The Twitterati were curse machines.

With great power comes great responsibility, and with great responsibility comes great headaches. So after years as the hottest, most talked about startup in Silicon Valley, Twitter is ready to relinquish some control of the national conversation.

Running a microblogging service and raising a son are, perhaps, challenges enough for Ev Williams. The Twitter CEO tells us he's no longer building a house with his wife, as he told the New York Times in March.

Twitter's revenues will be just $4 million this year, according to a new Wired feature story. But that's not going to crimp its co-founder's swagger: Evan Williams knows Twitter will be huge, and has words for anyone who says otherwise.

Twitter's CEO is building a new home with his elegant, designer wife. But it won't be ready until at least 2010. The couple's existing penthouse is, perhaps, unsuitable for them and their new baby. The solution? A temporary mini-mansion.

Evan Williams is on the move. The Twitter co-founder and his wife are building a "modern house" and just put their old place, a two-bedroom San Francisco penthouse, on the market for $1.5 million, Curbed reports. Have a look.

Twitter's co-founder gave some free advice to Google; Heather Gold talked about starting a brothel; and Tila Tequila complained that her inconsiderate maids aren't grateful enough. The Twitterati had some suggestions for you.

Karl Rove couldn't get on Twitter's watch list; Julia Allison was unable to broadcast a portion of her life and a comedian was unimpressed with comically large food. The Twitterati felt out of character.

Barely two months ago, Twitter staff were said to barely use their own service. Now they're in danger of turning into a bunch of Julia Allisons.

Without a clear reason for being, Twitter is about to flail its way into a "cyber-ghetto" for the aimless, alongside second-tier social network MySpace. At least that's the argument of a provocative post from Cody Brown, NYU's new-media wunderkind.