Sam Dwyer's List: Client side

bassistance.de/jquery-plugins professional javascript resource listing

www.dafont.com/theme.php professional css

phrogz.net/...OOPinJS.html professional javascript

www.quirksmode.org/...quirksmode.html professional css

www.betaversion.org/...169 professional css

www.crockford.com/...private.html professional javascript

sixrevisions.com/...20_web_development_tools professional resource listing

www.oswd.org professional resource listing css

www.css.su/ professional css

www.thelearnlist.com professional resource listing

www.dezwozhere.com/links.html professional css

www.sitepoint.com/...rinciples-beautiful-web-design professional css

csstinderbox.raykonline.com professional css

www.d.umn.edu/...webdesign professional resource listing

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simonwillison.net/...comet professional javascript

www.wait-till-i.com/...how-love-to-the-module-pattern professional javascript

www.wait-till-i.com/...script-configuration professional javascript

www.jslint.com professional javascript

peter.michaux.ca/...how-i-write-javascript-widgets javascript professional