This week's book giveaway is in the OCAJP forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide 1Z0-808 and have Jeanne Boyarsky & Scott Selikoff on-line! See this thread for details.
I feel that I could have done better if I was working with EJB3, but at the moment all I use is Spring, Hibernate and other smaller frameworks. Anyway, another certification won't certainly do any harm!