Engine21 makes it simple for you to set up searchable collections of favorites, and then to save sites, pages, and locations to those collections as you use Engine21.

Once you create a collection, you can search or browse that collection from the Engine21 website, or display it in other places using Engine21 feeds and widgets. For example, if you're in the green building industry, create and share your portfolio.

This all sounds pretty useful, but I really want to be making a difference...