Every month Smashing Magazine take a look around and select some of the most interesting web-development-related web-sites. You’ll find useful references, tutorials, services, tools, techniques and articles Smashing Magazine have found over the last 30 days.

Make sure you check stuff like Grid Calculator, test everything: 100+ tools, .htaccess IP, Referrer, and Hotlink Banning Generator, CSS Step Menu, CSS Sticky Footer, Browser Bugs, …