I have been using Hotmail and MSN Messenger for many years so I get to see the evolution of these two incredible free services. The Windows Live Messenger has become highly versatile. Besides chatting, you can now:
 
  • Play Games
  • Use Video Conferencing
  • Share Files and Folders
  • Access Email
  • Call land-phones
  • Talk to your Yahoo! Messenger friends
  • and much more!

On top of that, it does not take up much resources of your computer. Find out more and download here.