- Yahoo implements digg-style voting across some of its products; two opposing headlines pretty much sum this story up... Yahoo Anecdotal's headline: It takes two to Tango (suggesting interaction between Y! developers and their users); digg's headline: Yahoo Shamelessly Rips Off Digg and Brags About It. The first digg commenter on the story wittily notes: ""It takes two to tango" — one to lead, another to follow."

- From semantic Web (3.0) to the WebOS (4.0); Dan Farber has done a good job of summarizing Nova Spivack's wordy article about Web 3.0 and 4.0. As Dan remarked, "the concept of Web 3.0 is still a bit fuzzy, and Web 4.0, the WebOS on Nova's map, is really hazy." Still, it's always fun and interesting to think about where the Web is headed.

- Soapbox Now in Public Beta; Microsoft's YouTube is released to the masses. Add it to the list.

- Google to sell additional space for Gmail users?; makes sense for power users, although for PR reasons Google may just want to keep just raising the cap slightly over time - so that the perception of Gmail as a free webmail service isn't affected, especially since it's finally open to the world.

- Index Ventures Closes €350M Fund; with a focus on building global companies (such as Skype, Netvibes, Last.fm), Index is one of the most interesting VC firms around right now - and they're based in Europe. They also announced today the addition of former Skype global marketing VP Saul Klein as a venture partner.