have_somefun01
the best thing i can suggest is eBay if you look at what other people are selling you will see if its the kind of thing people are buying i sell old records and football(soccer) memorabilia on there there is a buyer for just about everything on eBay and if you go about it properly and study how to use eBay properly you ll probably find its a good second income

Kevin k
First you will need to know if they are worth something. Look for posters featuring major stars or famous movies. Disney posters should be highly collectable, even if they are reprints. If you want to sell them, try Ebay. If you want to preserve them, talk to a local framing shop and ask what can be done for the good ones. If you want to sell them in bulk, there are a few places around the country that specialize in selling posters. Google will help you find them.