There's http://Doodle.com http://Doodle.com, a service that helps groups schedule meetings by letting each person vote on particular time slot. They've been aro

There's http://Doodle.com http://Doodle.com, a service that helps groups schedule meetings by letting each person vote on particular time slot. They've been around since 2007, according to their About page, though they haven't made many updates to their service. I use Google Calendar's event scheduling feature a lot, because I often need to schedule group meetings. But when the participants I need to invite don't have a Google account, I use Doodle.com, because it has a free version that doesn't require everyone to register with it (low barrier to entry).