There are plenty of places to find screen shots of arcade games, but not so many where the screens were taken from actual, real arcade games. Most screen shot repositories use screens taken from an emulator, so you don't really know if they are 100% accurate. All of the screen shots here were taken from actual arcade PCBs using video capture equipment.
Feel free to use these images on your web page, but please don't put your on them. Please don't link to them either. Store them locally. If you use any of these images in print or television, please credit www.arcadecollecting.com.