The best option is to find a reputable recycler and recycle it. It should cost money, unless a vendor like Dell, IBM, HP, Apple, etc is funding it. Very few organizations can handle used computer donations responsibly, and I'd be especially leery of a group shipping electronics overseas.
The two environmentally and morally hazardous places that these donations are likely to end up are:
- In a landfill, possibly leaching lead, cadmium and other nasties into the watershed
- In an ersatz smelter in the third world where the impoverished burn electronics for copper and gold. There are individuals who actively smuggle junk electronics and CRTs places like Ghana for this purpose.
I suppose it depends on where you are located on this beautiful planet. For me the answer would be that some stores take it for recycle the correct way like Office Max, Office Depot, Bestbuy. Some schools also collect old stuff to earn money like empty ink cartdriges, old computers, cameras, cell. phoneetc. As for the display speak with somebody at your local landfill site or the local repair shops. A lot of ties they are the ones that can tell you about your local requirement and ordnances. Good luck and thanks :)