A complete list of sources that Broadersheet indexes and serves to you. If there are any sources missing, please request them from inside the application (howto).
Also remember if there are any sources you dislike (we know how passionate people are about the sources they do and don't trust!) to remove that source from the application is trivial. Consult the quick start guide in application, or contact support, for further assistance.
Some of the above sources have their own dedicated iPhone apps, but with Broadersheet you can enjoy all these sources, you can optimize them for iPhone reading and read the content offline.