Since the JavaRanch FAQ is a wiki, it's easy to update by everyone, and it's being improved all the time. Some notable recent additions include the following:

• The Web Services FAQ has substantial new sections on REST and on useful books.
• The OO, Patterns, Refactoring and UML FAQ is completely new, and contains a lot of interesting stuff.
• Also new is the JavaScript Links page, which points to various helpful articles, libraries, books, tutorials and references covering JavaScript and AJAX.
• The Struts FAQ has also seen various additions of late.
• Ever wondered how to deal with an obscure (or not so obscure) file format in Java? The AccessingFileFormats page has information on how to read and write a wide range of formats, including Word, Excel, PDF and many more.
• The Open Source Projects FAQ points to useful 3rd party libraries, as well as articles and tutorials about their use. Amongst the ones covered are JasperReports/iReport, JFreeChart, log4j and Lucene.
• Not really new on the Ranch, but recently migrated to the wiki -and much expanded- is the Code Barn, which has example code on a wide range of subjects, including applets, servlets and XML processing. If you have a piece of code that demonstrates a particular technique or API, let us know, and we'll include it.
• A truly frequently asked question has its own page now: RedirectForward covers the differences between Response.sendRedirect and RequestDispatcher.forward in a web application.
• Last but not least, you can always find the schedule for upcoming promotion at BookPromotionsSchedule.