Check out this year's nominations in CNET Webware 100 awards for the top 100 coolest online apps! To be nominated is a great accomplishment. We can make a Webware 100 winner by voting for it.
Many of Microsoft products have been nominated in various category, some of them are:
In the audio category- Zune Marketplace
In the Productivity category - Office Live Workspace
In the Publishing and photography category - Popfly
And there are many more. So if it happens to be your favorites, just click on the above links to vote.
Voting will run until March 31. Winners will be announced on April 21.