I had the same problem a week ago when I quit Reddit for good. I found I'd become so dependent, Reddit became: 1) the default "killing time" task 2) the thing I'd distract myself when doing something else online 3) my source for news 4) my source for current events 5) where I got all my content.

I realized that I'd stopped using the internet like I used to: independent thinking, finding my own content. But in the week since, especially with the help of Hubski, I'm finding my old habits are slowly coming back, and bit by bit I'm getting back in touch with places to find info, bookmarking, nice research sites, etc.

There's a word... can't remember it, but it's part of the appeal of games like Cookie Clickers. Something about a user being given a closed box, easy response routines, push the button, flag waves, the user is kept entertained, and it's something about how the human brain works, you can really do some complex psychological manipulation (think Pavlov, casinos in Las Vegas) with people using this. Reddit being one of those things.