40 Powerful CSS Tools And Generators To Automate Your Workflow

http://www.1stwebdesigner.com/css/powerful-css-tools-generators-automate-workflow/

http://lifehacker.com/5890174/top-10-pro-tips-and-tools-for-budding-web-developers-and-designers

Give your divs a simplistic nice shadow with css

I loved the middle box shadow in the shopify.com website, and therefore decided to dig it up. The CSS used for it is:

-moz-box-shadow: 0px 0px 15px rgba(0,0,0,0.1);

-webkit-box-shadow: 0px 0px 15px rgba(0,0,0,0.1);

box-shadow: 0px 0px 15px rgba(0,0,0,0.5);

At: http://www.shopify.com/faq

A Wonderful CSS Tricks Website

http://css-tricks.com/

With screen casts too at:
http://css-tricks.com/video-screencasts/

Wonderful Tutorial on CSS Layout and Positioning

http://www.brainjar.com/css/positioning/default.asp

Its a five page tutorial that I found really helpful.