I usually get slapped if I post about viral sites, but just about all the latest "love posts" onhttp://amplicate.com/hate/vbulletin are so viral it is unbelievable.
Any link with t.co in it is to be avoided like the plague. Some of the links are to "Omsk dating " It is posted in Russian.
There are many Russian dating or romance scammers. Many times "naughty but nice Natasha " is in fact big hairy Boris and his scammer pals. Sometimes it is me though.
Of course some MAY be false positives, but I for one will not be clicking on any of them with an unprotected PC. Sure, I don't know that Twitter uses t.co, but I do know how to swindle people out of their hard earned money.