Handhelden is an online database of electronic plastic handheld and tabletop games from the 70s and 80s. Anyone who spent time searching through the couch cushions for a spare AA battery will find something of interest while browsing the archives for pictures and details of over 600 games.
They even do exhibitions of their collection (which I would link to, but their web designer has chosen to obfuscate the links) and have an online store where many of the games can be purchased. Bleep!