I have taken some very original informative photos, I am thinking of posting it and get some links back to the webpage that has the photos, anyone can suggest where is the best place to post, thank you
Maybe a place like blogger.com would be good. The top level domain has good authority and its easier to rank on an establsihed domain...
The other thing you can do is get your images indexed in google image. Make sure all your images have a descriptive alt tag. In addition, in google webmaster tools turn on the "enhanced image search" option under "tools". This is a way to get your images noticed.
Offer your services to graphic forums, people are usually willing to provide a backlink if you provide a high quality photo for their website.