One thing that’s a worse time waster for busy marketers and entrepreneurs than (useless) meetings is trying to schedule a meeting. Especially when you’re trying to find a time for a large group of people, each of whom just has to be there. It always takes way more time and energy than it should, and then just when you think you’ve got it solved, someone says they can’t make it, and it starts the email avalanche all over again.

Fortunately, there are several free services that can make swift work of juggling calendars to find that perfect date and time. A sampling of these services is below.