Every body has favorite web tools, here are some of mine

Colors, CSS, and Fun Things to play with

• ColorZilla Gradient Generator
• My Fonts (has great web fonts!)
• inspiration, Smashing Magazine

Web Building CMS

• Drupal
• WordPress
• Ubercart (for online stores)

Email Marketing

• Emma
• MailChimp
• My Emma Email Marketing

Measure what you've been Doing

• Search for Marketing Conversion

Marketing Conversation

How to / Inspiration

• A List Apart
• Lullabot
• W3 Schools
• Brain Pickings

Good Books

• a Book Apart
• Steve Krug
• Guy Gavriel Kay

Useful Tools

• Approximate Conversion from Points to Pixels
• Linear Gradients
• Color Pic from Icono
• Pixel Ruler from Mio Planet