Google Calendar

http://www.ducttapemarketing.com/blog/2006/04/13/google-calendar-intergrates-with-gmail/





http://www.ducttapemarketing.com/blog/2008/01/11/how-to-publish-a-google-calendar-of-events-to-a-web-page/


http://o-nsr.com/widget-wajib-dimiliki.html


http://gema.blog.upi.edu/2009/09/29/kalender-online-%E2%80%93-seberapa-manfaatkah/


http://www.idonbiu.com/2009/04/buat-sms-pengingat-jadwal-dari-google.html


http://www.rismaka.net/2008/06/pengingat-jadwal-menggunakan-google-calendar.html