Cyndislist is an old timer of a site, remarkably useful and used, and genealogy is one of the best reasons ever to even have the internet (besides FreeRepublic, email, and porno). I'm sure that was all part of Al Gore's plan when he invented it. ;')
I use it all the time. I work as a payroll specialist in real life, but a "genie" in real life. I am doing a full genealogy of the descendants of Timothy Bush and Deborah House, the earliest Pres. Bush ancestors. I am amazed what people were also descendants...NASCAR racer Kip Stockwell is a direct descendant of Timothy Bush Sr.'s son Fairbanks Bush...LOL...genealogy won't save the world but it will at least properly document it. ;-)