Like kongergate. They accept flash games, is there away of posting game-editor games so it can be implimited in the bowser. If there is nothing yet, I may suggest a site like that.
To execute Game Editor games inside a browser, the engine need to be modified. I think a port for flash is possible: http://code.game-editor.com/ticket/12
Game Editor is an open source game creator software that's wants to pay it's developers to keep evolving. If you like Game Editor, make a review!