There are several websites listed in this old thread
http://www.wrongplanet.net/postp3358931.html
I can't vouch for whether or not any of those sites are "good". I have yet to get around to posting a profile on any of them. I mean to, but I am too disorganised and tired. Just trying to get by in this world consumes most of my time and energy. It is hard to find the motivation to pursue relationships when I don't see a future or much point in my existence. C'est la vie.
Edit. Also see http://www.wrongplanet.net/postt166503.html