The Google Stuff
Google's Webmaster Central Blog
If you want to stay in touch with new developments at Google, you'd do well to take a look at this blog once in a while. Written by Googlers, it contains a host of information about the Googlosphere.
Google Webmaster Central
This is the hub for Google's global webmaster community. It leads to a huge number of diagnostic,and statistical tools, as well as a host of informative tutorials and articles.
Google's Webmaster Help Forum
Basically, this is where the rubber meets the road, as the forum is frequented by thousands of web designers and promoters looking for help with all kinds of problems, each and every week.
Global Standards and Guidelines
World Wide Web Consortium (W3C)
The W3C was founded in 1994 by the inventor of the web as we know it today, Sir Timothy Berners-Lee. Composed of over 400 members, it develops the standards by which the Internet works.
Section 508 Disability Access
Think accessibility doesn't matter? Think again. Not only are Global laws starting to tighten, search engines also see your website in a similar way as a visually impaired surfer's screen reader.
Google Webmaster Guidelines
While technically falling into the Google Stuff category, the webmaster guidelines form a vital part of any website's design, with the quality guidelines playing an especially important role.