Rated 5 out of 5 stars

Maybe instead of you having to add every site manually you let us add API sites ourselves?

I have a private site with an API which allows for image upload and only returns the URL, I use it mainly for gyazo, but it would be nice if you could add an option to add any site's API.

This review is for a previous version of the add-on (1.5.6). 

I don't know how such a feature would be implemented. Every API works differently and usually just requires code to be written to support it. You want some kind of plugin model? Please post to the codeplex site if you want to discuss further.