If liberal bloggers are really a growing political force in the Democratic Party, perhaps we need to work to spread some of that force out geographically. On the cloture vote, Democratic Senators from the following states voted for cloture:
Arkansas (2)
Connecticut
Delaware
Florida
Hawaii (2)
Louisiana
Montana
Nebraska
New Mexico
North Dakota (2)
South Dakota
Washington
West Virginia (2)
Wisconsin
Perhaps over the next year or so, the largest of the liberal blogger traffic hubs should seek quality liberal/progressive blogs in these states to promote and build visibility. National pressure is valuable, but local pressure also implies voters. That includes statewide, well-known blogs.
Leftyblogs is a good starting point for reference. Unfortunately, the Reader Blogs listing at DailyKos is too dated to be of much value.