Let's face it, the web is full of some utter rubbish, but some sites and blogs do stand the test of time and I find myself returning to them again and again for information, inspiration and ideas.
Fora TV - Stimulating the grey matter :-)
Swiss-miss - design in general.
Apartment Therapy - Interior design, but for real homes not showhomes - their smallcool contest was a great source of inspiration and advice when faced with decorating my own small space.
Real simple - simplify your life - idiot-proof advice and tips on a range of topics.
Epicurious - all the recipes you could ever want, along with reviews.