(Original post by Regent)
How much is the rent and whereabouts are you living? I've heard you'll be lucky if you can get a decent placed (shared) for £500p/m.
You'll be surpised how cheap you could find somewhere. I found a flat in shoreditch (very close to liverpool street) for £450 a month all inclusive, large living room, double bed, a balcony and only sharing with one person. www.Spareroom.co.uk is the best site for finding somewhere imo, just be wary of timewasters. Rooms tend to go quickly on the that site so it's not worth looking at until you're ready to move within 2 weeks or so. There are plenty of cheap options in the Docklands area as well.
You really have to choose what you want and where you want to live carefully as Tokyoround said. I used www.gumtree.com and www.findaproperty.com but that was for a complete flat rather than a room to rent.