If you like the Wikipedia rabbit hole, check out the Wiki game on your given app store. The basic idea is that you have two separate topics, and you have try to link to the second from the first in as few clicks and time as possible. It's actually quite fun and you end up reading about some really random stuff.
I'm extremely prone to this. On several occasions, I've looked up a word using kindles built in library, then see an interesting related word, then I see an unfamiliar word on the same page, then there's a link about pronunciation, before, finally, I think to myself "Motherfucker, have you been reading the dictionary for an hour?"
I have this Wikipedia game I like to play that I'll call "Conspiracy." Basically, load a random page and find your way to Richard Nixon as soon as possible. My strat is find a way near the United States and you'll find him lurking in a corner somewhere.
All roads lead to Nixon (mostly because every road can get you anywhere within a few pages)
Me after being on Walking Dead wiki for 6 hours even though I don't even watch that show.
