Matt Dotson's List: Qanda

www.rating-system.com q&a

shapado.com q&a

www.mahalo.com/software q&a

meta.stackexchange.com/...-of-stack-exchange-alternative

askbot.org/questions q&a

www.question2answer.org q&a

www.blurtit.com/ answers

thebigreason.com/...thebigreason-tinymce-skin

alteregoapp.com

mailinator.com

www.badgeville.com