How do I find information about discontinued LEGO sets? I have some older LEGO sets that have been discontinued for a while.

I am trying to find information like # of pieces and some other info. 

Looking them up on the LEGO website didn't work. Is there anywhere else that I could find info?
Welcome William. Please check out either Brickset or BrickLink to find this information. Both websites have a big database containing tons of information on LEGO sets and LEGO parts. BrickLink is more comprehensive, but a little bit more difficult to navigate.