The cold hard facts about Internet dating

For anyone banging his or her head against the wall in the world of dating, it seems the answer could lie in your calculator.

I recently spoke to Shanghai millionaire Dr Li Song, the CEO and co-founder of the world's largest matchmaking website for Chinese speakers, www.zhenai.com.

It boasts 23 million registered users - and new ones are signing up at a rate of 30,000 a day.