Cell phone salvage programming

I was looking for a site to do some programming on parts I salvage from phones discarded once they've become useless. I'm guessing that most of the parts in the cell phone are dead but parts like the camera and LCD screen(if not smashed) should still work. Has anyone tried this before? I'm new to hardware programming and can't really find what I'm looking for.

Okay, I found a little info on the subject and I will be looking into it a lot more cause it doesn't seem too hard, albeit, probably harder than I think.

Let us know if you find any good resources! I'd be interested in using some of the same type of thing, I'v a few dead phones with good bits in,and the screens have got very good in recent years