a whola lotta ALA listservs

The ALA Marginalia Blog recently highlighted the 150+ ALA-related electronic mailing lists that are out there.  You can see a list at the ALA e-lists page.  There are a lot of lists here I didn't know existed.  I wonder how active they all are?  I know the ones I subscribe to vary greatly in activity levels.

I see such dichotomies in the discussions happening on listservs, on blogs, on social networking groups for libraries (like on Ning or Facebook).  There is some duplication, but it seems like certain topics or certain types of information only go out or comein one way.  The solution to getting the most comprehensive info is to look at all of them - including the ALA listservs that pertain to your work.