Tags are a convenient way to organize your videos.
Say you have a video of your dog playing in the lake. You could tag it with "Playing at the lake" and you could also tag it with "Sparky my dog." You can then use the "Sparky my dog" Tag for any videos in your account that have Sparky in it. You can use the "Playing at the lake" Tag for any videos you shot while you were at the lake.
We know this is a little different that folders but we think that this method of categorization is more powerful because you have more options. If you have any questions about Tags, don't hesitate to shoot us a email and we'd be happy to help you out. support@sproutvideo.com.