Directory: Calendar data

Upcoming.org is a collaborative event calendar, completely driven by people like you. Enter in the events you're attending, comment on events entered by others, and syndicate event listings to your own weblog.

As Upcoming.org learns more about the events you enjoy, it will suggest new events you never would have heard about.

Meetup is a free service that organizes local gatherings about anything, anywhere.

iCalShare is the largest directory of shareable calendars on the web.
Calendars are free to download and can be used with such applications as Apple's iCal and Mozilla Calendar.
Now listing 1560 calendars, in 35 different categories!

SherpaFind™ is Semaview's easy to use and free calendar search engine that lets you search through thousands of calendars listing events occurring around the world. Download calendars into eventSherpa™ with one click of a mouse. Calendars remain automatically synchronized so you don't have to worry about missing that important event should the organizer change the date or time.

Here’s a roundup of calendars you can use with iCal to stay on top of everything from ball games and concerts to major holidays to movie openings and DVD release dates to Apple store events.