1. I am not now, nor have I ever been a member of a book club. If I was going to join one I would prefer to join an in-person club.
2. If I was going to implement a book club at a library I would be inclined to go with some of the "Great Books" and not more popular fiction, just because it would force me to read books I'm not disciplined enough to read on my own. I looked at the website for the Houston Great Books Council and found a group called the Philosophy Cafe that I find fairly intriguing. I might model a book club on this one with my first selection being The Plague by Camus or Process and Reality by Whitehead. This would probably be a really small group.
3. On Goodreads, Animal Vegetable, Miracle by Barbara Kingsolver has an average rating of 4.20 with 11,313 ratings. I'm not sure what the rating means but I enjoyed this site and reading reviews by members. It also has recommendations for other books if you like this one.
The Readerville Forum has no way to search for specific titles so I couldn't look up this author or title. Shelfari has over 233 reviews of this book and over 11 discussions. Almost all of the comments are positive but I couldn't find a specific rating.