With all the emphasis on the economy, you can follow both the House, the Senate and Whitehouse on Twitter. The House in particular will give you a ton of updates on what is happening on the floor. The Senate doesn’t update very often.
I have not tried it, but it looks like you can also send them a tweet, this is perhaps the new way to be heard? Have to be careful not to overload Twitter in the process as any user of Twitter knows what happens then. Also, you can follow the candidates this way too by doing a search to find them. Could be convenient if you were looking for a particular bill and see what is being done on the saving of the economy.