Liz Gannes writes:

Pinterest is now the third most-visited social network, Google+ is No. 4, and Instagram is No. 11, in the markets Experian measures — which are North America, Australia, Hong Kong, New Zealand, Singapore and the U.K.

A year ago, Pinterest was No. 188, Google+ was No. 56 and Instagram was No. 609.

Pinterest is plateauing, but Experian expects growth to start again soon.

Google+ will keep growing too thanks to Google+ Local.

And in the next year Instagram will crack the top 10, which means Facebook will own two Top 10 properties.

Tumblr isn't top 15 or Tumblr isn't a social network?

Windows Live? must be because it's the default homepage of WindowsXP...

MySpace? how long does it take to kill off a social network?

Classmates? Haven't seen their banner ads in a few years...

Old networks don't die. They just... Slowly... Disconnect.