My good friend and longtime conference roommate Greg Koger is one of the signers (along with Steve Smith, Barbara Sinclair, Sarah Binder, Eric Schickler, and others) of a letter trying to clear up some historic inaccuracies about the Senate's use of the filibuster. Sens. Tom Udall (D-NM) and Tom Harkin (D-IA) are reportedly circulating this letter to encourage the Democratic majority to simply do away with the filibuster, saying that Republicans' promiscuous use of the filibuster demands a corrective. You can read the letter below.
My understanding is that Democrats could readily do away with the filibuster either by simply ruling that a simple majority can change the Senate's rules or by using some kind of stealth point of order. Either would work and are permissible under the Constitution. The question is whether 51 senators are actually willing to do it.