ooVoo just launched the beta version of their web video software. It is similar to iChat or Skype but with higher quality and lots of social features like group conversations and video messaging. Here is the free download.
Editorial note: Whoa! You've found a super-old post here on BuzzFeed, from an earlier era of the site. It doesn't really represent where we are anymore, and may in fact be totally broken, but we're leaving it up as a part of our early history.