Now there are just too many social networking sites which are pointless, Google+ is the only social networking site with a great purpose (it didn't turn out as popular as it should of been sadly).
I use Twitter once a week, and what people post is just so stupid and meaningless like "I just wiped my ass and there was stuff all over the toilet paper", seriously? That's what people post about on Twitter; their boring lives.
I'll give this and Tumblr a shot though.