How is this for stating the obvious? Data mining is helping marketers better understand and cater to consumer behavior. Examples abound — even here, in Digital Solid. But this fact is worth repeating considering this latest example.

As reported and discussed in this GigaOm post, Twitter is likely to purchase Summize, which is a popular third-party application that searches and reports on keywords embedded in these 140-character packets of text. Om Malik of GigaOm conjectures that the reason for the purchase is less about search, which can be interesting, but about understanding consumer behavior, which can be useful to marketers.

This is an understatement.

The biggest question surrounding Twitter has been, How can this seeming toy ever break through and become a profitable business? This week’s news suggests a research product that, in its beta phase, is already quite good. Go to its Sentiment Analyzer and type in a phrase. Malik typed in keywords related to the acquisition of Summize by Twitter. Here was his result:

Sentiment is “Bad.” Obviously the majority of people Tweeting about the buy-out aren’t Summize’s soon-to-be-wealthier founders! If you want to see really bad, however, type in “Gas Prices,” as I did here:

It’s a fun toy. But the real time market research implications are huge.