Any picture-only type website doesn't require much from the user. So I Picasa and Flickr and YouTube (and web 1.0's hotornot.com) fall within this category. I

Any picture-only type website doesn't require much from the user. So I Picasa and Flickr and YouTube (and web 1.0's hotornot.com) fall within this category. It doesn't take much to look at a picture/video and click. Or if they want to submit their own content, it isn't hard to browse, upload and submit.