We all need help at times. Here are some places I go in no particular order:
w3schools.com – The “official” source as far as I am concerned
alistapart.com – No one is finer
dezwozhere.com/links.html – Wonderful collection of CSS links
mandarindesign.com/boxes.html – Amazing CSS box work
pixy.cz/blogg/clanky/css-3col-layout/ – Very simple 3 column layout I use
csszengarden.com/ – The beauty of CSS
Changing Font Attributes – How fonts work in CSS
css.maxdesign.com.au/listutorial/ – Learn to Love Lists
css.maxdesign.com.au/floatutorial/ – Fabulous Floats
brainjar.com/css/positioning/ – Positioning 101
elated.com/tutorials/authoring/css/positioning/ – Positioning 102