I think the best way to display your photographs is using thumbnails, small ones, but I think you should use them. I hate signing the photographs. I dont like it at all, but sometimes you have to do it. If I have to I prefer signing with a very small tipography in one corner of the image, and in a color thats not too contrasted with the backgroung. And the watermark is a very good option to protect the photographs. Just my opinion ;-) Hope this helps. Arturo.