One of writers was struggling to come up with article titles(writers block?!!) so we had to find a quick way to come up with titles and the answer turned out to be Wordtracker Keywords Question Tool
Enter your keyword to find questions relevant to your topic that people are asking around the world. As you can see this is also a nice little tool for coming up with angles/themes for the articles.
Great time saver.
alltop, digg, mashable etc are other great places to find inspiration for titles.