The search for new methods to improve communication among internauts is fairly common among program creators. They always want to move on to the next step, and this what they achieve with this add-on for Firefox called Foxifly 0.1, which lets you communicate with other users connected to the Internet.
This way you can browse webpages consulted by other users with the same tastes (that is given away by your historials). Also, obviously, it works the other way too. Thus you can learn which YouTube or Flickr videos they´re downloading or watching, because they´re using this same add-on.