This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Until the 31st of August, you can take a free Brainbench test on Java Fundamentals. There is some overlap with the SCJP in the topics covered, so if you're preparing for the latter it might be of some limited help as practice...or maybe not, but I found it interesting to compare the types of questions at least.