Some further websites which you may find of interest:

http://www.narpsuk.co.uk            Nationwide Associates of Registered Pet Sitters

http://www.agilitynet.com             Dog Agility in the UK

http://www.tilleyfarm.co.uk           Tellington Touch

http://www.flyball.org.uk                Flyball in the UK

http://www.train2000.org.uk         The Centre for Women's Enterprise and Employment

http://www.petholidayfinder.co.uk    UK holiday accommodation, dog friendly cottages,
                                                              hotels, B&Bs, caravans; pets always welcome!

http://www.pawsforkids.org.uk      a charity helping women, children and their pets
                                                          escape from a life of violence and abuse, to a better
                                                          and caring future.