From an article in Business Standard:
Corporate blogging, though in its infacy, has got a shot in the arm with this post. It is estimated that 40 Fortune 500 companies publish corporate blogs, allowing CEOs, employees to bypass the public relations department, journalists and industry analysts and speak directly to the public. Amazon, Cisco and Oracle were early adopters with AMD, Dell, Kodak, GE, Intel, Microsoft, Sun, Yahoo and Xerox following suit.
Not much is happening in India on this front, though. Of course, Infosys has its weblogs called infosysblogs.com and Rajesh Jain (one of the pioneers of the Internet in India) has his emergic.org. But we dont have a Narayana Murthy, Nandan Nilekani or an Azim Premji blogging like Schwartz.