This is one of the oldest sites on the Internet. It falls under the category of message boards. You are able to post queries about your ancestors in specific surname boards or geographically. The majority of the information on this site is not sourced, but offers major clues to our families history. In my own research I have found clues here that have helped me in making major breaks on my families history. It makes the brick wall a little easier to get over.
The length that the site has been around results in difficult collaboration challenges due to people changing their emails. The information though is still priceless. www.genforum.com