Justia just released a free tool that allows you to search federal district court dockets by party name, court, lawsuit type. See the press release here. Amazing. The really good part is that you can perform a search and save that search as an RSS feed and be notified anytime a case is filed that meets your search criteria. So, if you want to know anytime a lawsuit is filed against your clients, set up a search for each one and save the RSS feed. Check it out here.