ajaypal.com

So here you can pretend that you are researching online for your next big project but actually can be playing games online in your web browser http://nintendo8.com/toplist/more/.

Nice collection of old retro games from the 80's. Have been made available online using the very nice Java Applet from vNES.

BTW I can also put on some of my old favourites online but not sure regarding the legal status of uploading the ROM.