Flickr has an api library that can be used in a .net environment. the source files can be found on flickrdotnet.
More information can be found on flickr service.
and i made a sample application.
first add a referce to the flickrdotnet api in your project.
second, if you don't already have it obtain a unique key from flickr
now your ready to do some cool stuff.
Flickr f = new Flickr(<your key>); //if you are behind a proxy WebProxy wp = new WebProxy(<your proxy>, <portnumber>); wp.Credentials = new NetworkCredential(<username>, <password>, <domain>); f.Proxy = wp; Photos photos = f.PhotosSearch("logicacmg", TagMode.AllTags, null);
the object photos contains a collection of url's which are tagged logicacmg.
an other article about flickr and ajax can be found at codeproject.