[Discover] Archaeoastronomy dynamically counts down the days, hours and minutes until equinoxes, solstices ... http://www.archaeoastronomy.com/countdowns.shtml (calendar astronomy reference science)
 [Discover] Calendar http://www.timeanddate.com/calendar/custom.html?year=2008&country=29&month=10&typ=2& ... (calendar)
 [Discover] Toodledo :: A to-do list to organize your tasks http://www.toodledo.com/ (productivity tools todo gtd)
 [Discover] timeanddate.com http://www.timeanddate.com/ (reference tools calendar date)
 [Discover] 65+ Online Calendars and Calendar Tools http://mashable.com/2007/10/08/online-calendar-toolbox/ (calendar tools productivity calendars)
 [Discover] Gmail Google Calendar sidebar – Userscripts.org http://userscripts.org/scripts/show/8921 (tools calendar)
 [Discover] Funambol Mobile 2.0 Messaging Powered by Open Source http://www.funambol.com/ (mobile opensource sync calendar)
 [Discover] Welcome to Jiffle | Scheduling Made Simple | Get Jiffle http://www.jifflenow.com/website/get_jiffle (calendar)
 [Discover] Archaeoastronomy pinpoints equinox, solstice and cross quarter moments throughout the year http://www.archaeoastronomy.com/ (science space calendar temp)
 [Discover] Timetoast Timelines | Create timelines, share them on the web. http://www.timetoast.com/ (timeline tools visualization timelines)
 [Discover] shivian's bookmarks tagged with "calendar" on del.icio.us http://del.icio.us/shivian/calendar (calendar)
 [Discover] del.icio.us search for "event calendar blog" http://del.icio.us/search/?fr=del_icio_us&p=event+calendar+blog&type=all (blog webdesign calendar)