In 1994, Hakon Wium Lie proposed the concept of Cascading Style Sheets (CSS) to the world, moving web design one small, significant step closer to perfection (read a brief history here).

For the virgin, the W3C has a short tutorial for those of us who have never used CSS before. There’s also a more robust tutorial (by the W3C) here, and another by The Web Design Group here, all of which are well worth bookmarking.

In addition to the above, html.net’s CSS section is also a good place to go to, especially since it’s HTML tutorial is only a click away.

For an actual reference you can touch and feel, nothing beats The Ultimate CSS Reference by Tommy Olson and Paul O’Brien. While you’re there, check out some of Sitepoint’s other priceless titles

For inspiration, there’s cssBeauty, and the CSS Zen Garden.

And as usual, Smashing Magazine has a plethora of tools, tutorials, and techniques the wanna-be CSS expert should not live without (of course, these are not the only CSS materials they have available).

In no particular order, here are the links to some of the better posts in the [EssentiaList] series to keep entertained over the weekend:

1. The Secular Sabbat
2. Discover New Things Onlin
3. Take a Minute to Enjoy Somethin
4. Of Things Well Don
5. The Change, Jargon & Idea Editi
6. Cheat Sheet Editio
7. The Concentrate Edition

• MoinMoinWiki
• PBwiki.com
• PmWiki
• DokuWiki
• Wetpaint
• Google Sites
• TiddlyWiki
• Wikispaces
• Although it’s not a wiki, strictly speaking, Google Notebooks can be used like one, and will come in handy if you get the Firefox extension

Bonus:

Why use a wiki? Which wiki is right for you?

1. Tutorial9’s School of Photoshop (highly recommended)

2. 23 Most Incredible Photoshop Tutorials

3. Photoshop Tutorials and Design Resources for Designers (from MickM.com)

4. Create a 60’s Psychedelic Style Concert Poster (from PSDTuts.com)

5. Colorful Typography Photoshop Tutorial (from Photoshop-Garden.com)

6. Photoshop Tutorials.ws

7. Only Photoshop Tutorials

8. 100 wonderful photo effects Photoshop tutorials (from The Photoshop Roadmap)

Of course, you can also “stick it to the man” and use 10 free web-based alternatives to Photoshop

1. I Need a Virtual Break. No, Really

2. 52-nights-unplugged

3. Thou Shalt Unplug: Implementing A Secular Sabbath

4. The Journal Times Online: Secular Sabbath

5. The list of things to do on your secular Sabbath are endless: read (nothing beats a cup of coffee and a good book on a Saturday), learn to play bass guitar, exercise, or volunteer for starters.