First - The Sunlight Foundation was part of this trail back in June. They have a new mashup using Google maps to highlight where dollars are heading from pending legislation. Check out earmarks.
Second - Common Cause has a blog. Today there is an entry about action being taken to address voting machines in the Commonwealth of Pennsylvania.
Common Cause also published two reports on Wolves in Sheep's Clothing with the inside scoop on who is really behind what appears to be "citizens for net neutrality" (hint - it is not the "real public" but in fact AT&T and the telecom associates)
If you have found a good source of information on government and the political process, let me know.