Now that everyone has a smartphone, the paper calendar's days are numbered.
Websites 4 the Day:
Alternatives to the standard calendar:
iPhone users: http://www.businessinsider.com/the-best-alternatives-to-the-iphone-calendar-2011-4?op=1
Android users: http://android.appstorm.net/roundups/utilities-roundups/five-of-the-best-calendar-app-replacements/