Mashable recommends using CrisisWire, WhosTalkin, and Social Mention to aggregate info on Gaza from dozens of social networking sites into one location. Remember, someone with a cell phone and a Twitter account can often get news out fast and first when no one else can. So, real-time websites like these can be invaluable.
If you haven’t used these sites before, just jump in. Once you start, you’ll find them both simple to use and powerful.