I combine using wordprwss-based website, slideshare account for presentations and vimeo.com account for video recordings to create open courses. See at: http://i-mokymas.com/free-services/
i often implement Camtasia studio for creating video lectures: http://www.techsmith.com/camtasia.html They provide 30-day trial. A lot of options to manage video for internal use, stream video SD and HD.
i usually use the Bing for targeted search for my presentations, and other materials: http://www.bing.com/images http://www.bing.com/videos/ Usually i use integrated search in the MS Office apps-i.e. Powerpoint, Word, etc.
My presentation about different training methods for adults lifelong learning.
Our presentor delivers his experience in defining appropriate portfolio of training methods and launching them into production for colleagues in the Vilnius University Institute of Applied Mathematics and Informatic.