I have always found Twitter to be intimidating. All those hash marks and @ signs. However, I am finally learning to use this tool, by using it, playing with it, and trying things out.
I found a large number of my blog posts had been retweeted by various users. I also found that you can locate many blogs of interest (I have added several to my blogroll just this evening), as well as a lot of information on any topic of interest.
For finding topics to blog about, Twitter is tops. I will keep learning.