Executives from Facebook, Google and other companies have held talks with Twitter over a possible acquisition of the micro-blogging service, pushing its estimated value as high as US$10 billion, according to a report in The Wall Street Journal.

The figure is high for a company that only had revenue of $45 million last year, posted a loss, and estimates its revenue this year will be between $100 million to $110 million, the Journal said.

However it is reported that Twitter executives are not interested in selling. The newspaper did not say whether any formal offer was imminent.