I want to mention a cool plugin I recently found for Eclipse. It's called implementors and it addresses a frustration I've had for a while. It has to do with interfaces and the implementors of those interfaces. We try to write all our code to interfaces and then write implementing classes to handle the actual processing. So if you need to interact with the database, you obtain an instance of IDataService. But what happens when you want to look at the code behind one of those methods? Pressing F3 (go to definition) takes you to the interface, no terribly helpful. What I really want is to go to the concrete class, DataServiceImpl, that is always behind that interface. The implementors plugin gives you Alt-F3 that takes you straight to the implementation. Beautiful.