Is there a list somewhere online of ALL the dog breeds in the world with pictures?

This site claims to include all breeds, not only American Kennel Club-recognised ones: http://www.dogresources.com/

Google "dog breeds" for more sites, and use "Google Images" to get a look at some of them.

dogbreedinfo.com is a good source for pictures and they have a fairly comprehensive list of breeds. There information on certain breeds is lacking and I don't really care for the fact they list a large number of the so called designer breeds but if all you are looking for is pictures they are a good source.