Very recently I had to dig into jQuery a bit deeper than just copy-paste from Stack Overflow. Here is a nice tutorial that I found helpful.
Tag Archives: Tutorial
One of the less known libraries of the Apache Commons project is JXPath which implements XPath (and not only for accessing Java beans but of course also DOM structures). Documentation, however, is scarce so the tutorial provided on http://www.tfo-eservices.eu/wb_tutorials/media/JXPathTutorial/PDF/JXpathTutorial.pdf is something you want to look at.