You ask, we are photographers, what does SEO have to do with us? My answer is simple: If you want anyone to find your photography, which is assumedly why you posted it on the web, then SEO is important to you. If you don't know, SEO stands for Search Engine Optimization and has long been the challenge of web developers to find an easy way for the creation of web site that everyone will see.
I stumbled across an article on 10 SEO Rules for Designers. There are many good ideas for us photographers as we create our own sites.
I hope this helps you get noticed on the web!
Don't forget to visit my photography web site where we sell museum quality black and white prints framed to last up to 175 years - Outdoor Images Fine Art.