I would appreciate some help defining the topics for a new free web
book(*) that I am planning on writing. The tentative table of contents
(which will change - especially if you make good suggestions :-) is:

Enterprise Ruby

Preface
Section I: Core Technologies
Chapter 1: Web Services
Chapter 2: Dynamic Content Using Servlets and WEBrick
Chapter 3: Ruby on Rails
Section II: Enterprise Recipes
Chapter 4: Adding Spell Checking and Correction
Chapter 5: Using AJAX
Chapter 6: Adding Search
Chapter 7: Handling Documents
Chapter 8: Report Generation
Section III: Unusual and Useful Ruby Hacks
Index

There are many great books on using Ruby in enterprise settings and
what I am trying to do here is filling in more information on topics
that are not covered elsewhere to any great extent. This is why I am
only planning one long chapter on using Ruby on Rails. A lot of Section
II will be implemented on the Rails platform, but I am assuming that
any reader has already worked through a few Ruby on Rails tutorials and
is likely to have already implemented a few web applications using RoR.

I wrote a free web book "Loving Lisp, or the Savvy Programmer's Secret
Weapon" a few years ago and I received a lot of great ideas, feedback,
error corrections, etc. from the Common Lisp community. I am not known
in the Ruby programming community so I might not get the same level of
help, but I am hopeful :-)

(*) I am going to release this as a free PDF file under a Creative
Commons license, but I would also like to find a publisher who would
make hard copy versions available to readers who want a physical book.