I am far behind on my reading of TechCrunch (124 unread posts to be exact), so thanks to Andrew for sending me this particular post: Pluggd to make podcasts chunkier, searchable.
Pluggd is working to make it so you can search within podcasts to find the parts relevant to you. It looks for both the terms you enter and related terms (I'd be curious to know how it determines related terms...). It then shows you the timeline bar (or whatever you call that thing) with various colors to highlight the degree of relevance. If you hover over them, you'll see the relevant terms.
Pretty sweet! According to TechCrunch, "Pluggd aims to have hundreds of thousands of podcasts analyzed and searchable by the end of the year."
If you are at all interested in podcasts, you should check it out. :)