Originally Posted by
edgecrusherO0
The membership is similar to XBL, and gives you additional features and services on PSN (which is has a decent free baseline service). Sony does offer up free games from time to time, I think Bioshock (or Bioshock 2) was the most recent giveaway they did for PS Plus members. It's not like, a standard thing, but it is somewhat common.
And you do download them, but I don't know if they're permanently attached to your account or not. I would imagine they are, but I've never been a PS Plus subscriber so couldn't say for certain.