Out4Marriage - a leading equal marriage campaign group is supporting calls for a rally outside the Houses of Parliament, being lead by all the three main political parties LGBT wings.
MPs are debating the second reading of the government's Marriage (Same Sex Couples Bill) - with Culture Secretary and Minister for Equalities Maria Miller opening the debate.
The head of a Christian legal firm in the US has said that the reason that the Boy Scouts of America may make moves towards dropping its ban on gay scouts, volunteers and staff is "spiritual pressure" from Satan.
The Deputy Leader of the Liberal Democrats, Simon Hughes, has said that he will vote against the timetabling motion for the equal marriage bill in today's vote, because he thought the timetable was "rushed".
Conor Burns, the gay Tory MP, who previously expressed his reservations about introducing equal marriage, says he is now inclined to support the Marriage (Same Sex Couples) Bill.