There's a bit of a queue of bills amended in the Lords building up, and they all have to be approved or rejected by the Commons... and the Defamation Bill's being held in a kind of parliamentary purgatory while alternativepress regulation proposals, based on the Conservatives' preferred idea of a Royal Charter, are negotiated.
In effect, the company wants to turn Twitter into a kind of Internet age alternative to traditional press release services like BusinessWire and PR Newswire.
Back in the Commons, business opens at 9.30am with questions to the Culture Secretary, Maria Miller. again questions about the amended version of the Defamation Bill and any alternative system of press regulation unveiled by the government, may feature.