There's a lot of competition out there!, if you're looking for cake decorating supplies, here is a list of cake decorating supplies shops in the UK that sell online.
Starting with of course oursleves!
Cake-Links Ltd - www.cake-links.com
Cake Decorating supplies, fast delivery, with helpful videos, chat and more.
Also in the UK . . .
A piece of Cake Thame - www.apieceofcakethame.co.uk
Design a Cake - www.design-a-cake.co.uk
Cake Craft Shop - www.cakecraftshop.co.uk
Cake Cookies and Craft Shop - www.cakecookiesandcraftshop.co.uk
The Cake Place - www.thecakeplace.co.uk
Windsor Cake Craft - www.windsorcakecraft.co.uk
The Sugar Shack - www.sugarshack.co.uk
Surbiton Art - www.surbitonart.co.uk
Pastry Wiz - www.pastrywiz.co.uk
Pipe Dreams - www.pipedreams-sugarcraft.co.uk
Splat Cooking - www.splatcooking.net
Knightsbridge PME - www.cakedecoration.co.uk
The Scullery - www.scullery.co.uk
Cakes for All - www.cakesforallukshop.com