In September Google unveiled a new search technology called Google Instant that shows results as you type. It’s an impressive feat of engineering. It’s also striking for the way it was introduced to the public. I watched the presentation on the Internet and tracked the way Google announced the “enhancement” via Twitter, other social networks, and its blog. The launch offers four valuable lessons for any business introducing new products or services. Read the entire column and the four lessons here at Bloomberg BusinessWeek.