Summary
Twitter real-time data is extremely inaccurate. "Twitterians" use it to express themselves. Our semantic analysis shows a huge percent of ambiguous words, and meaningless expressions. Slang is everywhere. It is difficult or even impossible to extract good keywords from statements. Twitter real-time data will negatively affect any search engine. I would suggest major players to stay away from this data.
Analysis
My company
Relevad Corporationis specializing on keyword and meaningful data extraction. Our researched concluded that 80%+ of Twitter topics have no meaningful data. Mostly emotions and slang words. Examples of typical "documents" : Great staff!!! Super! A I am bored, It rocks! Terrible!!! Good stock to buy, etc. think that if MSFT or GOOG will add Twitter data into the search it would kill relevance and accuracy and add nothing. Our attempts to find "good source of data" and recommend ad placement against it failed...
This author consults with leading institutions through GLG
Analyses are solely the work of the authors and have not been edited or endorsed by GLG.


