When I was studying for this exam, I wanted to create a study group with one other person, but she was busy getting her graduate degree. I ended up creating a FB page in hopes to share information on studying for
SCJP and other certification exams. Turns out, the act of maintaining the FB page was a great motivator in studying for this, and other exams.
Study groups are good. Many people also keep study blogs. Hec, I'm thinking of creating how-to videos on basic SCJP concepts for the fun of it....