The Lord Chief Justice has ruled that posting updates to Twitter while a court is in session is OK.

Google's Buzz status update system - launched earlier this week - has journalists in a flap following the discovery that it automatically publishes a list of most common contacts.

Microsoft has come clean regarding theft of layout and code from microblogging site Plurk for its new MSN China social networking service, blaming a contracted third party.

Twitter has just completed another round of funding, securing investment of $100 million in a deal which values the microblogging company at a staggering $1 billion.

Rumours are flying that Google - fresh from the demise of its own micro-blogging service, Jaiku - is in talks to buy Twitter for upwards of $1 billion.