Facebook Has 845 Million Users, Each Worth $4.39 in Revenue

Facebook has 845 million active users, it said today when it filed to go public.
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Twitter Finally Discloses How Many Active Users It Has: 100M

Twitter has 100 million active monthly users and 400 million monthly visitors to its Web site, said CEO Dick Costolo in a press conversation at Twitter’s San Francisco headquarters
Dick Costolo

Is Facebook’s Growth Spurt Over?

Facebook has reportedly had two straight down months for active user growth, including unusual traffic drops during the month of May in markets where it has been available the longest.
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Early Adopter: Is the Future of User Experience Design Made of Paper and Polish?

Everyone can move a sticky note. This is the concept of the trio of creators of UXPin, a paper prototyping kit for mocking up a Web site before a single line of code is ever written. It has become popular with designers who value speed and iteration–and, now, they’ll be able to UXPin-up a whole new set of interfaces.
UXPin

Spotify Signs On EMI for U.S. Launch. At Least One More to Go…

It’s getting closer: Spotify has finalized a U.S. distribution deal with EMI Music. That won’t get Spotify to America–at a minimum, it’ll need Universal Music Group on board as well–but it’s a step in the right direction. Now, about those Apple subscription fees…

Inside Twitter's Sales Machine: A Secret Guide for Advertisers (Video)

Twitter’s how-to guide tells buyers how to use its new ad platform. And it tells the rest of us how Twitter’s first real effort to make money is working. (Hint: It’s early days….)

HP Will Put Palm Print on Windows PCs

Finally, a bit of clarity on Hewlett-Packard’s plans to “drastically expand” its webOS operating system to the PC and their implications for Microsoft. HP may be going all-in with webOS, but not to the eventual exclusion of Windows. HP CTO Phil McKinney says the company is working on bringing an integrated WebOS experience to the PC.

Was TweetDeck's Sale a Good Deal? That Depends on Bill Gross.

TweetDeck investors are getting some cash, and a lot of equity, in their $30 million sale to UberMedia. So if Bill Gross can build a Zynga to Twitter’s Facebook, they’ll be in great shape. If not…

You've Got Labor Problems, Again! AOL's HuffPo Gripe Seems Very Familiar.

The good news for angry HuffPo bloggers who want to get paid for their unpaid work: AOL volunteers made the same argument during Bubble 1.0 and ended up winning! The bad news: It took a lawsuit, and more than a decade, to extract the cash. (And the HuffPo writers may not have a case, anyway.)

Twitter Tells Advertisers to Dig Deeper: "Promoted Trends" Get a Price Hike

Twitter’s popular ad units could see prices go up by 25 percent or more in the next few months. Also: Here’s how “Promoted Accounts” really work, and how much a new follower will cost you.

Facebook Sets Mobile Sights on HTML5

Photo-Sharing App Picplz Gets a Makeover

Does Facebook Have 600 Million Users Yet?