Smithsonian Vote – Art of Video Games
The Smithsonian American Art Museum is now inviting the public to vote on its favorite video games over the last 40 years. The exhibit, called The Art of Video Games, breaks voting down into five eras. Voting requires registration and care must be taken because once cast, votes cannot be changed. The Smithsonian promises that all images displayed in their voting are suitable for public viewing by all ages.
Details and registration can be found here: http://www.artofvideogames.org/
As of this writing the server hosting the voting has been performing slowly.