Hi lil,
There are a couple of over 50 sites that we know of, we just have not reviewed them. Barbie and I are in our 30s, so I'm not sure we're the best people to review them.
Perhaps we can get a volunteer, hint, hint.

Here are a couple of sites to consider:
SeniorFriendFinder.com
40Singles.comAlso,
MyCountryMatch.com has a lot of over members over 50, the oldest is 76!
If anyone has any other suggestions, we would love to hear from you!