Yah i think most people have been doing this for a long time but a great idea for those who might not have thought about it..
I usually like to try and put the galleries under a directory like
http://yourdomain.com/members/gallery/1/page1.html
so the surfer is more inclined to think that there may be some members pics he can view without authorization just by altering the url

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This is kind of like throwing a couple galleries together on a spare domain and password protect them , then *pass along the password to some password sites .. The surfer thinks they are getting PAYSITE porn for free. I havent done this in a while but my brother used to make good coin doing it
