British Computer Society (BCS) is a charity with a royal charter, and an agenda to support the people who work in IT and to lead the industry through its ethical challenges.
The Institute of Mathematics and its Applications (IMA) exists to support the advancement of mathematical knowledge and its applications and to promote and enhance mathematical culture in the United Kingdom and elsewhere, for the public good.
w3schools.com is the world's largest web development site. Ideal for beginners and experts.