The most difficult thing for an author is to get their books under the eyes of readers. Most of the authors I know have a few email addresses, not enough to send out a monthly newsletter, which is a 'must do' for indie authors.
Our area author association Kentuckian Authors has over 300 authors. I'm sure that many of them have licked the newsletter/address problem, but there are likely plenty of us who are struggling.
The Co-op approach - one mailing list where authors pool their addresses and we all pitch in for the newsletter - looks like a possible solution.
In order for this to work, we are going to need a thousand addresses, and I hope to get 100 authors by Christmas. The first Book Stop Central newsletter will go out at the end of July.
Stay tuned for updates.