Some of you guys that post pictures more often post them with some sort of "logo" located somewhere on the picture. Maybe to protect from use elsewhere or for some other reasons. What is the point of including this logo/sig in the pictures you post? The logo, is it copyrighted or trademarked somehow? Or is it simply something you thought about and include in all your photos like a personal trademark? I do amatuer photography and have many of my own pictures I would like to share wether on the inernet or elsewhere. Should I come up with something like that for my own as well?

And do I have to register it somewhere or simply include it in all the photos I publicly display? Any and all help with this would be appreciated. I think I may have something but need more info on this.