The following websites give access to hundreds of vegetarian and vegan recipes - of all sorts - and many of the sites give links to even more:

Rose Elliot
The Vegetarian Society
The Vegan Society
Veggievixen
International Vegetarian Union - The IVU website is an excellent source of recipes from all around the world
Viva
Vegetarian and Vegan Foundation
Animal Aid
Eighth Day Cooperative
Women’s Institute
Delia Smith
BBC Good Food
VegCooking