Flatland offers a very good service for what they do, provide contact details for available rooms in Greater London through a daily updated email list for 3 months for a reasonable fee. You have to put in the leg work, visit rooms and make calls to agencies or landlords where necessary. It helps if you do your research ahead of time with budget and kind of room in mind. Mike was always willing to take my calls and answer my questions as far as he could, even giving alternative choices he thought might work for me. I found my room thanks to Flatland after about 3 weeks and will definitely be using their services when I need a room again.