I found Spareroom.co.uk to be by far and away the quickest, easiest and most efficient way to comprehensively search for properties all over London.
First time I have used the site to advertise and it wont be the last. Within 5 minutes we had a phone call and that person took the room 2 hours later a big thank you.
We NEVER pass on your details to third parties nor send unsolicited email ('spam').
We are committed to your privacy and adhere strictly to the Data Protection act.