I am forever compiling little databases of book series by date of publication so that I can read about my favorite characters in chronological order. Just now I discovered that there is an online wiki that you can use and add to that does the same thing, but in a much broader and more spectacular way because so many people can contribute to it.
You may already know about this database, but just in case you don't, please check out The Internet Book Database of Fiction. It's a place to discuss your favorite books and to find more that you would like to read. Of great interest to me, of course, is the Series List, but there are many other ways to explore books (by author, genre, etc.).