Riff

they have created. So, getting passed from friend to friend, a video can get sent a long way. In addition to creating videos, users of Riff can check out the most popular videos created by other users or friends. And, of course, if one of these videos inspires you in some way, you can respond by making your own video. Riff is something of a small, video-based social network that allows you to share short clips in only seconds. And who knows, it may even help you make some new friends.