I like tourism sites. Often times, a quick development process with a small bit of research can result in site that has a relatively low-effort revenue stream or site that is easily flippable on the developed site market. .Org sites are often lucrative in this market as many states and tourist destinations have based “official” sites off of the .org extension.
Here are 25 sites currently available for registration including 15 State sites. Go get ’em: