I recently had the need to interact with Oodle as a way to feed a classified site.
I was suprise to see that while they had php and java libraries/samples already available, but they did not have a .Net one. I searched on their forums and on the web and did not find a library I could use.
Since I had to interact with the api, I decided to make a library, and publish it as an open source component so other developers can use it.
You can find the library at: http://www.codeplex.com/oodlenet; all the references, source code & samples are included in the workspace.
I hope this helps!