If you are wondering what photos would be appropriate to add, just think of it as an extension of the website and add whatever you feel would be of interest to other viewers; talks, book tours, group meetings, evolution, Darwin etc.
If you would like to know more of what this is about take a look at the external website address for richarddawkins.net/home
You need to have a Flickr account to post pictures but it's free and easy to create one by clicking on the Set Up at the top of the page.
Add tags as you feel appropriate. Please at a minimum add an RDFRS tag so that others in the Flickr community can find the pictures and site more easily. (I had originally used RDF as a tag but there are quite a few other pics tagged with that and I have no idea what it's for, maybe someone's initials.
If you have any questions or problems please let me know.