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The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards.

w3.com is a provider of Web Site Creator, RichContent, ID Protect, POP Email, Domain Registrations, Email Forwarding, Ratepoint, DNS Hosting, URL Forwarding, goMobi, Premium Domain Registration, TRUSTe Privacy Policy, Traffic Generator, GeoTrust Anti...

W3Techs provides information about the usage of various types of technologies on the web.

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Professional WordPress Websites

WPMU DEV Premium is devoted to plugins, themes, resources and support to assist you in creating the absolute best WordPress MU (WPMU) site you can

GTmetrix is a free tool that analyzes your page's speed performance. Using Page Speed and YSlow, GTmetrix generates scores for your pages and offers actionable recommendations on how to fix them.

We hope we can illuminate why W3Schools is a troublesome resource, why their faulty information is a detriment to the web, and what you (and they) can do about it.

Alexa provides information about websites including Top Sites, Internet Traffic Stats and Metrics, Related Links, Online Reviews Contact Information and Search Analytics for SEM and SEO optimization. The Alexa Toolbar is a browser add-on that shows d...

Joost de Valk, developer of many WordPress plugins and an authority on WordPress & website optimization provides SEO tips, WordPress tweaks and more!