In my work, I work very heavily with pre-released technologies (like Windows Communication Foundation, Workflow Foundation, etc.)
The two questions I get asked fairly often - particularly now that we have so many products coming out and have embraced community technology previews for those products - is 'How do I know what the new stuff is, and how do I know when I can get it?". Right behind that are requests for things such as samples, utilities, etc.
InfoCenter has a tab named Downloads that aims to help alleviate this issue. The screen has links to downloads, betas and CTPs, demos, trial software, and utilities. In addition, the current MSDN top 10 downloads are featured on the main page.
