heyZap is a newer website that hosts games of all types submitted by game developers. TechCrunch describes heyZap as “YouTube for flash games.” heyZap provides customizable widgets for embedding any of the games on the site into your blog or website.

Applications for Education
heyZap doesn’t have a category dedicated to educational games, but it does have categories for strategy games and puzzle games. The puzzle games category is where I found games about the US states and capitals. The strategy game category is where you can find games like Chess. The customizable game widget allows you to select specific games to add to your class website or blog.

Here are some related resources that may be of interest to you:
Ten Fun Educational Games for K-8 Students
The Math Arcade on Fun Brain
Study Stack – Build Your Own Review Games