Why is Google involved in so many ‘market segments’?

Google has introduced a range of products and services in 2005 and continues introducing. These include mobile search, desktop search, Web site ad targeting, an RSS reader, advertising in RSS feeds, blog search, mobile blogging, free calling and instant messaging for Gmail users, personalized search history, 3D mapping, Google video and Google Mini, its enterprise search appliance.

In addition to solution selling, Google does product-specific marketing to finely targeted customer segments where it makes sense. Christopher Escher, director of marketing programs at Google, said each situation determines whether the company markets by product or by sets of solutions. "All of our marketing activities undergo an extremely rigorous ROI analysis and projections," he said. "We're in a constant state of iterating all of our marketing programs and activities."

(Taken from http://www.btobonline.com/article.cms?articleId=25835)