Here’s a really good idea — Doodle: a site that makes it easier to schedule meetings involving several people.
How does it work?
1. Create a new poll with a title, description, your name, and possible dates and times.
2. You get a link to your new poll. Send this link to all participants.
3. The participants use the link to visit the poll and select suitable dates.
4. You use the same link to watch the poll’s progress and the result.
And it’s free!