Keyword popularity prediction. Not Google Trends, or Google Insights. They show what keywords are popular after the fact - months later.. I want a tool that scour social networks, Twitter, forums, blogs and gives you a list of keywords in a specific niche that have been mentioned a lot in the past 7 days or so.
this is interesting. you could add alerts to show when something has an XX% rise in popularity. for example the explosion in keywords. basically creating stock market types graphs for keywords?