I have a very dear friend that used to believe everything that ever poped up in her inbox, and of course forwarded it all on to everyone. After I sent her links back explaining it was a hoax and she'd been duped, now she sends them only to me first and lets me research them for her first, before she forwards. She's not very good with a computer so it's easier for her to let me do the research. I'd rather someone send just to me and ask if it's true rather than 20 ppl having to deal with a hoax that they'll forward 'just in case' to 20 more ppl and so on.

I have found that with most ppl, that if you send back a link explaining how it's a hoax for every one they send you, that one of two things will happen...

1) either they will research them more often before forwarding (or have you do it for them)

OR

2) they will quit sending you much of anything out of anger/embarassment, which still stops the flood of hoaxes in your inbox.

In either case I keep an arsenol of debunking sites to research new ones I haven't seen 1,000 times before.

http://www.snopes.com/info/top25uls.asp

http://www.breakthechain.org/current.html
These top two links have a page showing the currently most circulating hoaxes, I usually don't have to go much farther than these two. lol But if I get an oddball one I use the rest of these links to track it down.

http://www.truthorfiction.com/

http://hoaxbusters.ciac.org/HoaxBustersHome.html

http://truthminers.com/hoaxarticles/

http://vil.mcafee.com/hoax.asp