Sure you can PM here, only difference is that here it's called "a conversation". Simply a different brand of software. Any member you wish to have a private conversation with just mouse over their name, a window pops up, click on . . . "Start a converstion". If you receive a PM on the upper right of your screen where it says "Inbox" next to a little envelope a number will show how many you have received. It's all pretty much the same with a bit different terminology.