Microsoft's code sharing site. Looks more than a bit like SourceForge :)
Seth lists 10 things (actually 9, there is no number 7) programmers should know about the marketing folks in their company. Good reading for coders removed from their customers by a layer of marketing schtick.
Well written and concise page explaining the XMLHttpRequest Javascript object and how it can be used to fetch info from the web server that can be used to update the page already loaded in the browser.
The goal of the site is to serve as a community resource for free software developers around the world, as well as a research testbed for work on group trust metrics.