You can add useful new features to Photoshop, Dreamweaver, Fireworks, Illustrator, InDesign, Flash Professional, and some other Adobe tools for creative professionals with extensions available on the Adobe Exchange marketplace. You can even do that while working on your current project in one of these apps as we reported in Get the Adobe Exchange Panel for your CS6 Apps.
Some of the most useful extensions on Adobe Exchange are for free. Here are some of the most popular.