The world of legal scholarship has expanded to include more than just law journal articles and treatises. There is now a wealth of legal commentary--much of it good--on law blogs, or "blawgs" as some people call them.
Blawgs can be particularly helpful for students writing research papers related to current or ongoing topics. If you are following a case or a new development in the law, there may be one or more professors or attorneys who specialize in that area of the law blogging about it.
Here are some places to get started looking for blawgs:
Justia's Blawg Search: Justia has a fairly comprehensive directory of blawgs--using this search, you can search that directory for blawg posts containing any keywords,
ABA Journal Blawg Directory: This directory groups blawgs by area of law,
Law Professor Blogs Network: All of the contributors to these subject-specific blawgs are law professors. These are some of the best law blogs around.
Ernster, the Virtual Library Cat