I had a google and thought the Cartomancy Forum looked interesting (and quite varied), but it seems one has to download a programme to change files to PDFs before being accepted. That rang alarm bells with me so I didn't proceed...
You're downloading a program that uploads your photos and turns them into links so they can be imbedded within the message instead of just attached. I've used the program without any issues.
Rodney (rwcarter on Aeclectic, voborara on Cartomancy)