I think that copyrighting and watermarking  photography is good because it can help prevent people from stealing your work. Although, I think it can take away from the photograph itself so I am not going to continue to watermark the work on my site. Also, I am not very worried about anyone stealing and trying to make a  profit off my work. Of the two watermarks, I prefer the logo because it is smaller and you are able to creatively design it rather than just putting your name.