Hive Five: Five Best GTD Applications

Lifehacker: "On Tuesday we put out our call for the best applications that help you practice the Getting Things Done productivity system, and from a mighty list of viable contenders, we've taken your votes and determined the five most popular of the bunch. Your choices span a wide range—you'll be surprised by some of the tools many of your peers are using to boost their productivity and get things done. Let's take a closer look at the five most popular GTD tools, then you can cast your ballot for the single best GTD app to rule them all."