PS+ adds a Brothers: A Tale of Two Sons (PS3, puzzle solving, got very good reviews) and Worms: Battle Islands (PS Vita)
The PSN update opens preording for InFamous: Second Son (which is still two months from coming out.) The preorder gives you a prequel. Grid 2 Reloaded (PS3), Olli Olli (PSVita), and Lucifer Ring (PS1) are in the game. Sale of the week are music games.
I just picked up a Gameshark for the PS2; and for some really dumb reason, I can't get any codes I input to work. Whenever I input a code and a title (i.e. Max Payne 2) the code shows up, at the top of the list, in pink...but I can't activate it.