Porn has always been a factor driving technology forward. The VCR was made a household device thanks to porn and as internet technology advances, porn fans demand that their adult viewing incorporates some of the newer viewing technology. That's where High Definition comes in. It is the latest buzz word in porn and many sites claim to offer it, but few really deliver the goods. High Def content is especially good for viewing extreme closeups, which makes it the next best thing to being there in person.As a porn lover, you know it's easy for a website to state they have high quality HD video content, but actually going through the huge task of getting the proper HD equipment for filming, editing and encoding is another thing.All the sites listed below have true HD content which means that they provide either 720p (video with 1280x720 resolution) or 1080p (movies with 1920x1080 pixel resolution) inside their members area.If you've got the computer and broadband connection for downloading and viewing HD video, you can rest assured that you'll be greatly enhancing your viewing pleasure through High Def.