Mahesh Murthy, who has the most "wow" resume I have ever seen, has started a search engine marketing company, Pinstorm. I still am not clear on what it is, as they are long on results and short on explanations, but they do say they have patents pending. Maybe it is one more of his successful ventures.
Check out their corporate blog. It is early days yet, but I think it is far better than the PR written corporate blogs seen so far in India.