My manager referred me to a couple of posts on Jörg Hoh's blog of
tips and tricks for CQ5. And from there I learned that Adobe offers two certification courses in CQ5.5. It's always nice to have a new certification to add to your resume. But I should probably wait to sit for the
Component Developer exam until I finish the new project I'm starting in January, because my experience to this point has been with 5.4.