Be mindful that because a photo, book, song, or other artwork that is posted to the Internet usually is a copyrighted work, even if it doesn't explicity state so, and means it is not free to copy and use in any way you see fit. Perhaps you've heard of Napster and the legal troubles they had.
There was a syndicated story just yesterday about a Ccollege student that recently lost a song sharing infringement case. The courts decided he owed $630,000.
Most photography forums have a rule somewhere stating they prohibit posting photos you don't own the copyrights to.
Many photo forums, like this one, exist to make the forum owners money from all the advertising you see. They are the ones that risk being sued, which is why they have the rule.