It is rumoured that Microsoft are looking at taking a stake in Facebook. According to some reports they are considering paying between $300 million and $500 million for a 5% stake in the website. The news, if true could potentially start a bidding war between Microsoft and Google. Mark Zuckerberg, Facebook’s chief executive has already refused a takeover approach by Yahoo and has said he wants the group to stay independent. It will be interesting to watch where this goes.