KarmaTube describes themselves as:  "KarmaTube is a collection of short, "do something" videos coupled with simple actions that every viewer can take. Our mission is to spread the good."  They have weekly choice videos, chosen from many uploaded to their site every week.  Some are very hard, but all are inspirational and give energy to the viewer. 

Their URL / address  is  www.karmatube.org/

I highly recommend them.  Please click on the link or copy it to the address bar (URL bar) of your browser to check them out.