Prince Alwaleed Bin Talal, has boosted his internet and media company holdings with a series of new acquisitions.

These include the acquisition of USbased priceline. com stock. This adds 2 million shares of common stock at $25 a share to the $50 million worth of existing stock already held by the Prince's Kingdom Holding Company. The US online retail site has a customer base of 7 million.

The agreement includes warrants for an equity interest option in Walker Digital.

Founded in 1995, the business solutions company has launched more than 300 business solutions and several online operating companies including priceline. com, Retail DNA and the Priceline Web House Club.

Prince Alwaleed has also invested $153 million in a 3.2 per cent holding of KirchPayTV. The digital pay-television platform is the leading operator in Germany and Austria with more than 2 million subscribers.