I read about Flowgram and Vodpod in Stein Brunvand's Ed Tech in Teacher Ed blog.
Flowgram is a free program that combines web pages, documents, photos and voice comments into one interactive package. Users can control how they navigate through the flowgram. Teachers or students can create an educational flowgram and share the link or embed it in their blog.
Vodpod is free program that allows you to collect your favorite videos and then share the collection on your blog. I added the vodpod widget to my blog sidebar.
20 hours ago