Google is unstoppable.

Coming at the heels of searching the web, searching your desktop, offering gigabytes of free email, free chats and free maps, Google is now offering free Wifi access, initially at the Bay Area of San Francisco, USA. And most observers are quite sure that a nationwide rollout is not far behind.

Has Google gone mad? No, it’s part of its overall strategy for getting even more ad dollars. More Internet access means more eyeballs, and more eyeballs means more Google ad power. Five years after the Internet commerce bubble burst, a company has finally gotten the web-ad revenue model working beautifully. So much so that small businesses will happily spend around US$ 40 thousand per year on pinpoint Google AdWords because they really work.

It’s going to be hell for companies that have set up WiFi subscription services in the US. Not our problem though–the local market’s still too small to support an online ad-based business model for free WiFi services.