Here are a few links to some of the best online tools and resources I’ve found on the Web.  They’re actually useful!

Google Analytics – http://www.google.com/analytics/

A free tool for web designers.  It’s a remotely hosted traffic statistics system that’s easy to install on any page of your website.

htaccess Tools – http://www.htaccesstools.com/

This site has different generators to create .htaccess files for blocking IPs, hotlink protection and more.  For those who don’t know what an .htaccess files is, they’re invisible text documents that configure Apache web servers.

Browsershots – http://browsershots.org/

Check browser compatibility, cross platform browser test your site.  If you use the free version, don’t count on getting all of your requested screenshots in a short period of time and your limited to how many times you can que the system.  It’s worth it to pay $29.95 per month for priority processing if you’re a designer.

COLOURlovers – http://www.colourlovers.com/

This is still one of my favorites.  Colour lovers influences and monitors color trends by rating, commenting and sharing palettes, and patterns.  One of my favorite features is the ability to download the Adobe Illustrator swatch of the palette I make.  The only drawback is it’s only 5 colors.  But it’s still easy to add new colors to my swatch once in AI.

WordPress Codex - http://codex.wordpress.org/Main_Page

Everything you need to know about using and installing  WordPress.  You also find information on working with WordPress, design and layout, advanced techniques, developer documentation and more.  It’s the essential bible for anyone developing a WordPress site.