Recently I was a judge in a contest the folks at Doodle held for the best use of their API. My first pick for winner, Doodlendar, took home first prize. Developed by two students in Zurich, Doodlendar puts your Google Calendar side-by-side with your Doodle poll, so you can easily see your schedule as you make or respond to a poll. Doodlendar even lists the possible event dates on your GCal as pending so that you don't schedule over them before the final date is chosen.

Thanks to Doodle management for the opportunity to review some really nifty implementations of this underhyped but useful tool's API. Congrats to Doodlendar for bringing home first prize. Here's the full announcement of the winners and runner-ups.