Tripwire is a very informative online resource for web designers and web developers. With literally hundreds of tutorials, tools, tips and step-by-step examples of the best design and development out there on the web, Tripwire's writers share information that can help change the way you think about and approach design and the Internet.

A quick preview of post titles should give you an idea of what to expect in terms of samples and other helpful tools:
16 Scarily Realistic 3D animations
15 Stunning Fresh Photographic Effects from DevianArt
10 Brilliant On-line Tools For Freelancers
30 Essential Tools For Web Designers

Tripwire offers articles on things from CSS, design and development, icons and Javascript to Photoshop, themes and logos. For the artistic and the analytical among you, this site offers hours of fun, inspiration and helpful lessons on how to expand your repertoire of skills, and expose you to how other designers and developers think. Have fun.