I have found http://uniteblue.org
to be an invaluable tool for use by Democrats, liberals and progressives to find good people to follow on Twitter. It has been a great help to me on Twitter, in building a following in a very short time. I am using it every day.
If anyone cares to follow me there, I am https://twitter.com/saynotojeb
Keeping tabs on the third Bush trying to seize power of the White House, as well as reviewing some of the fairly questionable, if not criminal, actions of the previous two Bushes to hold that office.