Social networks worldwide are estimated to bring in $3.3 billion in advertising dollars this year, according to updated estimates by eMarketer. That number represents a 31 percent increase from 2009′s $2.5 billion. A full 39 percent of that amount, or $1.3 billion, will go to Facebook. In the U.S., social ad spending is estimated to rise 20 percent to $1.7 billion. Facebook is gobbling up even more market...

Crafty commerce site Etsy just raised another $20 million in its fifth venture round (that would be the Series E). Index Ventures is the new investor leading the round, with partner Danny Rimer getting an observer’s seat on the board. (The board is made up of founder Rob Kalin, Caterina Fake, Accel partner Jim Breyer and Union Square Ventures partner Fred Wilson). Previous investors Accel and Hubert Burda...

Those of you stuck using boring old stable builds of Google’s Chrome web browser are missing out. Chromium (the open source browser that Chrome is based on) is where it’s at. Sure, it may not be as stable as Chrome, but it has some cool new things that Google is working on. For example, the latest builds of Chromium (already into version 7) include the new “Apps” area above the “Most...