2012
Calendar of API changes | Twitter Developers
by srcmax
This page lists important upcoming dates for consumers of Twitter's APIs. The dates listed will be as specific as possible, but may not be exact for various reasons.
2010
Google Calendar API (GCal) | drupal.org
by claire_
This module implements the Google Calendar API. The module is intended to be used by other modules who want to import/export to Google calendars.
2008
Integrate your PHP application with Google Calendar
by damdec
Google Calendar allows Web application developers to access user-generated content and event information through its REST-based Developer API. PHP's SimpleXML extension and Zend's GData Library are ideal for processing the XML feeds generated by this API and using them to build customized PHP applications. This article introduces the Google Calendar Data API, demonstrates how you can use it to browse user-generated calendars; add and update calendar events; and perform keyword searches.
2007
Twittercal — tweet your google calendar
by springnet & 3 others
http://Twittercal.com is a free service that connects your Twitter account to your Google Calendar. Add events from your Twitter client. Follow the 5 steps procedure to get started.
2006
Google Calendar Data API
by benoit & 9 others
Google Calendar allows client applications to view and update calendar events in the form of Google data API ("GData") feeds. Your client application can use the Google Calendar data API to create new events, edit or delete existing events, and query for events that match particular criteria.
30 Boxes API
by springnet & 2 others
The 30 Boxes API is open for non-commercial application development. Remember we are still in beta; we will change, update, and add methods as we recieve your feedback! More to come soon...
SPRACI
by michaelmd
nightlife, clubbing, parties, gigs, festivals
events listings for many cities worldwide
+ data feeds, web services, blogs, forums, directory, music reviews & more. Post your public events (its free). You can use the forms, an ical client, or submit your a data feed of your public events or use the rss, ical, hcalendar or javascript feeds to display events for your city and your favourite categories. check http://www.spraci.com/api for more info about syndication and data feeds.
SPRACI has been online and evolving since 1994.
