I wonder what people are saying on GOP sites...

[MrsCoffee]

11. Educate yourself.

http://www.outsidethebeltway.com/did-the-democrats-ever-really-have-60-votes-in-the-senate-and-for-how-long/#sthash.6Mi5wqJ9.ggmUGrz6.dpbs

What this shows is is that there were only two time periods during the 111th Congress when the Democrats had a 60 seat majority:

From July 7. 2009 (when Al Franken was officially seated as the Senator from Minnesota after the last of Norm Coleman’s challenges came to an end) to August 25, 2009 (when Ted Kennedy died, although Kennedy’s illness had kept him from voting for several weeks before that date at least); and
From September 25, 2009 (when Paul Kirk was appointed to replace Kennedy) to February 4, 2010 (when Scott Brown took office after defeating Martha Coakley);
For one day in September 2009, Republicans lacked 40 votes due to the resignation of Mel Martinez, who was replaced the next day by George LeMieux.

So, to the extent there was a filibuster proof majority in the Senate it lasted during two brief periods which lasted for a total of just over five months when counted altogether (and Congress was in its traditional summer recess for most of the July-August 2009 time frame).