I often get the urge to step away from the funny YouTube videos and expose myself to something. . . educational. Gasp! Yes, you can find me watching just as many videos on Academic Earth and iTunes U, as I do on sites like Hulu. And now I've got a new one to add to the mix — PBS Video. PBS has just launched a new video portal (in beta) where you can find all sorts of clips and full length episodes from a variety of programs and topic areas. The site also gives you the ability to share videos with friends and family, or purchase a copy by clicking "Own It."