Have a look at these sites from my partners or people I think are great! Some offer fun things to do in London which I can arrange as part of your visit to London with It's Your London and some offer trips further afield.

Wonderful art tours in the East of London with Clare who really knows her stuff and gives you a real insight into new and original art:
ArtFeelers  artfeelers.com

A fun 60s style retro tour of London in a genuine original Mini:
Smal lCar Big City smallcarbigcity.com

Keep fit and see London at the same time - excellent combination:
City Jogging Tours cityjoggingtours.co.uk

Personal service in your trip to lovely Surrey:
Toursunbound toursunbound.com

Are you looking for a really good full day cycling all around London? Then Nathan is your man at Cycle Tours London  www.cycletourslondon.com

Enjoy your travels around Britain with: 
The British Traveler  thebritishtraveler.com

If you want to read about all things British from an American perspective:
Smitten by Britain www.smittenbybritain.com