I have one. He is quite the character, haha. What is it you'd like to know?
I haven't been able to find a lot of info either, but having one gives a personal perspective so maybe that'd help?... When I was given the prairie dog (he came to me at the same time when two chinchillas were surrendered to the rescue), the original owner referred me to a website regarding prairie dog care, and the one I typically refer to is
http://www.prairiedoglover.com/pdcaresheet.htm. But I haven't found any very active prairie dog forums.
Let's see... some general stuff about him... he loooves to dig and burrow in his shavings, so he makes about as much of a mess as a chinchilla, if not more. The cage I have him in now has shavings at the bottom and a hidey house. He will literally pick up the shavings in his mouth and sort of barricade himself in his hideyhouse so that there's a wall of shavings in the opening of the hidey house. I had him on fleece liners for awhile (because he'd push all the shavings out of the run), at least while he was in the run, but he is much happier with shavings and being able to burrow his way in them. He sleeps either curled up in a ball or sometimes on his back.
Mine has bites and scars all over his back/rear end from where the dog and cat would bite/scratch at him when he was "let out to play." I'm not even going to comment on the stupidity of that owner, he has a LOT of scars. It doesn't seem to affect him much though, he still seems friendly and sweet to me, so they're probably even better than this if they're not tormented by their owners. I was originally told that you literally could not touch prairie dogs between October and May... because of breeding season or something like that. I can't say Shiloh likes being picked up, per se, but he does like scratches and he does let me pick him up without taking my hands off. That said, I did take it slow with him and didn't pick him up without gloves until I'd had him for several weeks, because I've read that often people need stitches when they get prairie dog bites. I've also heard they're one-person pets... but I think a lot of that has to do with how much people interact with them. When I first got him, he'd raise his head every time I'd go to pet him, which makes most people draw their hand back.. but time goes on, and he got used to me and now I can reach in and scratch him no problem. Just lots of talking to him and stuff.
I have some videos of Shiloh on my youtube -
http://www.youtube.com/user/greychins. Please excuse the fact that he was kept in a run (he is now in his own multi-level cage), I was not expecting to get a prairie dog when I got a call saying someone wanted to surrender some chins and I didn't have another cage ready.
I don't have any pictures at the moment of him in his new cage, and I can't take any right now (I'm moving and he [and the rest of the pets] are already staying with relatives until the move is complete at the end of the month). But here's some pics from before.
ETA: thought of something else. If bored, they are highly destructive.... and creative. In the run, he would push the pan out. I had to hold it in with springs. He broke several large 1" split rings that I was using to hold the door closed. Between the time he was in the run and then in his actual cage, I put him in a Ryerson? holding cage. He literally ripped the wire from the wood where it connects at the top (I'm going to have to somehow re-do the entire front of the holding cage if I ever want to use it again) and practically de-hinged the door in the week he was in that holding cage. He would grab the door and shake it, and could wake the dead with the sound. It was nothing like when the chinchillas grab the door and shake or chew on the bars, this was ridiculous.
However....that said.... now that he's in a 3 level cage and has his hidey house and shavings to burrow.. he does none of this. The doors are actually "looser" than the doors on the runs, but he doesn't mess with them or try to get out, I assume cause he's not as bored.