This week's book giveaways are in the iOS and Features new in Java 8 forums. We're giving away four copies each of Barcodes with iOS: Bringing together the digital and physical worlds and Core Java for the Impatient and have the authors on-line! See this thread and this one for details.
FormLayout from JGoodies is pretty much the choice of champions for serious swing development. A bit complicated, but very powerful and much more pleasant than GridBag IMHO. Also MigLayout looks interesting. It's built on top of FormLayout so promises to make it easier to use, although I haven't tried it yet.