The United Kingdom Passport Service site aims to assist new applicants and existing passport holders by providing information and online facilities for all aspects of application, renewal and amendments of passports for British nationals resident in the UK.
http://www.ukpa.gov.uk/

UK train ticket booking service.
http://www.thetrainline.com

If it’s a train ticket you’re after make tracks to Qjump.co.uk. Book online for all UK National Rail journeys 24/7 and have your tickets delivered direct to your door. Click our name for access to great fares online.
http://www.qjump.co.uk

Provides all the information and links you need to know about.
http://www.cclondon.com

An extensive product range which include tours, excursions, hotels, car hire, activities, sports tours, safaris and soft adventure. The ebookers UK Group are predominantly experts in mid and long haul travel with product ranging from best value deals and complex itineries to boutique, niche product. The ebookers UK Group is able to offer a multi-channel approach with its online, retail and customer call centre support.
http://www.ebookers.com