Javascript

http://perfectionkills.com/
http://www.crockford.com/
http://avaxhome.ws/ebooks/programming_development/html_css_js_javascript
http://ajaxian.com/
http://rmcreative.ru/blog/tag/JavaScript
http://james.padolsey.com/
http://www.phpied.com/category/javascript/

HTML/CSS

http://www.alistapart.com/
http://www.cssplay.co.uk/index
http://www.catswhocode.com/blog/
http://www.no-margin-for-errors.com/
http://www.webdesignerwall.com/

Developers blogs to read

http://coderoom.wordpress.com/ – yield thought
http://elliottkember.com/ – Elliott Kember dot Com
http://www.kigorw.com/ – only Russian language
http://lessio.ru/ – only Russian language

Inspiration/common reading

http://webdesignledger.com/
http://spyrestudios.com/
http://net.tutsplus.com/
http://www.queness.com/
http://www.smashingmagazine.com/
http://news.ycombinator.com/
http://stackoverflow.com/
http://www.dzone.com/links/index.html
http://www.webdesignerwall.com/
http://mashable.com/
http://twistedsifter.com/
http://www.boston.com/bigpicture/

Design

http://abduzeedo.com/
http://www.thecoolist.com/
http://freshome.com/