As reported by The New York Times, Twitter's co-founders - Evan Williams and Biz Stone - have said they are totally behind the business and have no intention of selling, despite the recent rumours of Google, Microsoft and others showing interest in the company.

Of more interest were their possible ideas to monetise the service, although a firm business model is not yet developed. Possible options are to give companies and heavy users enhanced features for a fee, such as getting introductions to new followers or trying to authenticate a company or person’s identity which is becoming a key issue for users. Search is becoming another key issue as the business develops its real time search engine, using the technology acquired last year so that third-party Twitter services can also use it.