I utterly loathe online social networks / social networking. They've become a showcase for society's worst and little more.

Great for people who want to sell you something, or push a political ideology on you, or whore attention for themselves but totally devoid of any actual substance.

I've given them their fair shot. I keep a FB account to occasionally touch base with friends back home and that's it. Twitter is a joke and I wish it the worst. The rest aren't even worth mentioning.