Excellent guide that covers most of the basics, although it's a bit thin on references. University of Chicago login required.

Decent guide written by Gregory M. Bovey, a Swiss attorney.

Written by Fridolin M.R. Walther, a Swiss Lawyer and Law Professor.

Has a variety of resources on the workings and organization of the Swiss government, including some laws in English, but it is noted that "English is not an official language of the Swiss Confederation. These translations are provided for information purposes only and have no legal force."