At Occasional Planet, Gloria Bilchik has gathered information showing the latest trends in the town hall meetings that some of our Congressional representatives are still having (many of our representatives aren’t having town hall meetings anymore). The information she gathered shows that some of our representatives are charging admission fees for entry into the town hall, while others are excluding those who are less likely to kowtow and confiscating cameras from those who are allowed in.
This is a good summary with lots of links.