www.w3.org/ - The W3C write the standards for the Web. HTML, XHTML, CSS, XML, DOM and many more are all produced and maintained by them.

www.ukwda.org/ - The UK Web Design Association was established in 2001 to encourage and promote industry standards within the British web site design and new media sector.

www.web-design-directory-uk.co.uk/ - Web Design UK is a directory of web site designers and web site design companies in the UK.

http://www.web-central.info/- a leading website directory

http://en.wikipedia.org/wiki/Web_design - Wikipedia definition of web site design.