Twitter was used by Barack Obama during his presidential campaign

A TV series based on Twitter is being developed.

The show will use the social networking site as the basis for interactive competitions, involving celebrities and Twitter users.

The unscripted series is currently being developed by two production companies in the US.

"It captures what's best about Twitter," Reveille Productions' Noah Oppenheim said, "and it's a compelling TV show in its own right."

The 'micro-blogging' service, which allows users to post 'tweets' of up to 140 characters, was launched in 2006.

It's now one of the fastest-growing social networking sites, and numbers celebrities Ashton Kutcher, Jonathan Ross and Stephen Fry as regular users.