Furthermore If you claim copyright to a creation, You are by law obligated to sent copies to the Library of Congress within 3 months. Failure to do so makes you liable to be fined by the US government. No one here is saying that you have no protection but unless you register, file and fullfill your obligations then you leave you creations open to unlimited use. Just attaching a statement is not enough!! The company I work for, everything goes through legal there are very specific rules as to what gets published, how it is published and nothing goes out on the public domain before being approved by legal. They make sure the companies rights are protected. We have lawyers on staff who's only job is to make sure that the companies rights are legally filed and protected. For the individual It does not cost alot, All it takes is a couple of bucks and some time and paperwork. So if you think your stuff is worth protection make the investment. If not or you don't, well as I said before you will not be standing on both legs. The mandatory filing copies to the Library of Congress should be taken note by all the artists on this site that attach a copyright notice to their images.