Reverse an edge split? I applied an edge split a while ago on my model and now I want to separate parts of it. It's going to take me a long time to individually select each face because none of the edges are touching the other. So I can't use some of the auto-select features in Blender...
You can Tab into Edit Mode, key A once or twice until everything is selected, key W to open the Specials menu and select Remove Doubles.