This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Yes, chapter 4 surveys the Ajax capabilites of Protoype and the Dojo toolkit, along with jQuery and DWR.
Of course this chaper is not a comprehensive tutorial on the complete capabilities of all those libraries -- that could take a complete book for each -- but we focus on the Ajax-enabling portions of the libraries.