Free Software to Keep You Organized

Lists abound on the internet, and I always make a point of perusing the ones having to do with free software; who knows when I may hit upon the next great thing!  Check out this recent list from the Christian Science Monitor about one blogger's 14 favorite productivity tools.  I myself regularly use Mozilla Firefox and Gmail, and I have used or explored Skype, Dropbox, Evernote, Google Docs, Google Reader, and iTunes.  I will definitely be looking at some of the remaining six software programs -- probably Digsby first.