Find a site that updates regularly
It's usually in this order:
-4chan
-forum (not this one;; )
-Livejournal comm
-blog
There's probably tons of stuff you should be doing, or wanted to at some point, but can't think of. So uh... yeah go do those things.
Maybe go find a comm based on something you like that you can hang out in. I already lurk in I dunno how many lolita comms, local photog/urb-ex/parkour forums, and now a pokemon comm, so I'm content. There are also some just "POST CUTE THINGS" websites that are updated all the time.
There's also always catching up on anime/manga and window shopping, of course.