We have been constantly advised- "What you see on the net or in forwarded emails MAY very well be false". So I suggest that before you spam your friends with some 'unbelievable', juicy emails, do some checking. You can easily 'google' it!
A case in point. I received a forwarded email entitled 'Marzipan Babies' and was amazed by the technique, detailing and material supposedly used. The email asks "Would anyone eat these?" (as marzipan is an edible form of cake decoration). I googled 'Marzipan Babies' and was immediately acquainted with the artist, Camille Allen and her miniature doll & baby sculptures fashioned from clay, and NOT MARZIPAN!! She is very much aware of this hoax. So, luckily I checked my sources, or else it would have been RED FACES all around.
If you come across what might look too unbelievable, check it out in Snopes.com ("Rumor Has it", is their tagline. It lists all kinds of Urban Legends, stories that may or may not have started out as truths but were exaggerated into a modern legends and also includes "fallacies, misinformation, old wives' tales, strange news stories, rumors, celebrity gossip, and similar items". http://www.snopes.com/info/faq.asp