Forget blogging. If you want to make serious cash out of the net then it seems you need to be in the search engine business. Just in case you didn’t watch the news on telly yesterday, Google is now the world’s most valuable media company, worth an astonishing £44 billion (£2 billon more than it nearest rival Time Warner). However sales are just £1.7 billion a year which makes its valuation 25 times more than its annual turnover. And who said the dot com bubble has burst!