It seems to be a time limited offer, up to 30th April 2009. According to EH.net (Economic History Resources),
« American History in Video is live! This new online resource for teaching and research is growing to include thousands of of rare newsreels from 1929 through the 1960s, including the entire series of both Universal and United. You’ll also find the historic Longine Chronoscope broadcasts and hundreds of hours of documentaries from leading producers such as The History Channel.
It’s all in streaming video—just point your browser and click—with synchronized, scrolling transcripts alongside. Make custom clips, which will live at permanent URLs. Put your clips into playlists and share. And much more… »
What will happen thereafter ?