Learn-CSS-HTML-JavaScript.mdown

HTML & CSS:

• http://teamtreehouse.com/
• http://htmldog.com/
• https://developer.mozilla.org/en/CSS/Getting_Started
• PDF “HTML5 fundamentals”: http://public.dhe.ibm.com/software/dw/web/wa-html5fundamentals/wa-html5fundamentals-pdf.pdf
• http://www.abookapart.com/ – Notice HTML5 and CSS3 books there (although most of the books are well worth checking out)

JavaScript:

• https://developer.mozilla.org/en-US/learn/javascript/ (I'd recommend to skip CodeAcademy courses there as they are immature and add more complexity than value)
• http://www.codeavengers.com/
• http://lifehacker.com/5744113/learn-to-code-the-full-beginners-guide

Although a little outdated, still great way to start: http://www.quirksmode.org/js/contents.html

Also a book as a great way to introduce DOM: http://domscripting.com/book/

A great reference to pretty much everything there is in JavaScript: http://www.amazon.com/Professional-JavaScript-Developers-Nicholas-Zakas/dp/1118026691

And only then, maybe jQuery:

• http://docs.jquery.com/How_jQuery_Works
• http://www.learningjquery.com/category/levels/beginner

General Programming + Science:

• https://www.coursera.org/course/programming1
• https://www.coursera.org/course/hci