Have you built up your LinkedIn profile? Have you joined groups that will provide you with information relevant to your job search, your studies, and the practice areas in which you are interested?
If not, start with this blog posting that discusses the value of LinkedIn, but I think one of the greatest insights actually came from within the comments. As with all strategies, results will come with time invested over time. Rarely are results instantaneous! Once you've considered how you want to use your LinkedIn profile, then utilize this checklist to help you maximize the many features of LinkedIn. You'll be amazed at how much is in there.