If you're like me, you live inside Microsoft Outlook.  For maintaining your personal calendar, and company group calendars, Outlook is brilliant.  One area where Outlook falls short, however, is accessing iCalendar shared calendars.  Since iCalendar is sort of an internet standard, this is a frustrating issue.  RemoteCalendars is a free utility that solves that problem.  One of the many great open source applications available at Sourceforge.net, RemoteCalendars allows you to gain access to iCalendar based published calendars inside Outlook 2003 (previous versions of Outlook don't seem to work with this utility).  With RemoteCalendars installed, you can subscribe to calendars via http or webcal protocols.

It's nice to be able to see calendars from buddies who use Macs or Linux.