Hostels247.com helps backpackers and budget travellers book cheap youth hostels and budget hotels accommodation worldwide with free booking service
http://www.hostels247.com
Book on-line at hostels in London, interact with backpackers coming to London. Discussion forum on backpacking, London city guide, detailed information on hostel accommodation and backpacking in the UK.
http://www.hostellondon.com
An Association providing hostels managed by the council offering low cost accommodation in London to working people and students.
http://www.london-hostels.co.uk/
O'Callaghans budget hotels and hostels in Earls Court London, offers budget accommodation to students and backpackers.
http://www.ocallaghans.co.uk/
Hostels in London, Edinburgh, and Shepherd's Bush. Each hostel has facilities for backpackers, students and tourists on a budget. Including breakfast,showers and late bar with discounts for guests.
http://www.st-christophers.co.uk/