Like Quora, in order for Streamliner to succeed, it will require human work and a topic architecture that allows users to tag pieces of content and then cluster it on the backend. However, whereas Quora started with their most fervent users doing the lion’s share of the work (such as editing, tagging, etc.), Streamliner provides a clear-cut incentive for online content producers, mostly in video, to annotate their videos and add a layer on top. This is different than what SpeakerText is doing (disclosure, SpeakerText CEO @mattmireles is a friend); his company uses turk to crowdsource transcripts of videos.
Streamliner doesn’t provide transcripts, but rather the ability for one or more people to add their own context layer over the video, such that it becomes easier to navigate, search, and bookmark. For instance, if you work on the opposition research team for President Obama, you may want to have a catalog of every speech made by candidates in the other party and have them organized by topic. Or, if you like The Daily Show (like me), you may want to subscribe to a weekly digest of his show to determine which segments you’d like to watch in their entirety. There’s also promise for technology (I believe they “streamlined” most of the TechCrunch SF Disrupt videos), as well as how-to, education, and other niche verticals.