A few weeks ago, I came across the St. Louis Post-Dispatch's "Searchable Database: Money in Missouri politics. It's a useful database. My only complaints are that I can't see the big picture, and I can't compare one candidate or donor to another.
So I spent the last week working on a pair of network graphs and interactive visualizations:
Links to the viewers:
People and committees are represented by circles. The size of a circle indicates the relative size of a person's or committee's activities. Lines represent donations from one person or committee to another.
Mouseover a circle to see who or what it represents. Click a circle to see who the person or committee connects with; clicking also brings up details of the person's or committee's activities.
I didn't use the full set of data contained in the P-D's database; instead, I used the "Contributions over $5,000 Search" page on the Missouri Ethics Commission's web site.