http://order-order.com/2013/07/24/poll-result-86-of-readers-...
Guido Fawkes is talking to his lawyers about Libel. (Which under English law -- the reforms haven't gone through yet -- places the burden of proving that she didn't damage his reputation squarely on Claire Petty's shoulders.)
I'm just astonished that an MP appears to have been so ignorant of the law of her own land (and how it applies to twitter) that she left herself wide open to this.