Several databases have options for creating automatic search alerts to update you when a new item is added to the database that fits a particular set of search criteria. After doing your preliminary research for a paper or note, setting up a search alert based on your topic will allow you to know if there have been any new cases decided or articles published. This can also help with finding a topic if you are interested in a particular area and want something timely to write about. Each of the links below has instructions for setting up a search alert in the appropriate database.
There are a couple of online resources that are very helpful for finding timely and controversial legal topics that often make good notes.