I have collected soooooo many links to great tutorials, articles, tips, tricks, techniques, ideas, inspiration, and all sorts of other stuff. Here is where I keep the links for myself. Since this is public, maybe it will be useful to you, as well.
http://www.kpsec.freeuk.com/ - Great articles and tutorials on basic electronics and theories, including soldering tips. Good beginner information can be found here.
http://www.electronics-tutorials.ws/ – Another absolutely fantastic electronics tutorial site. This is a must-read. The tutorials are quite in-depth, but easy to follow. Get there. Read it.
http://tronixstuff.wordpress.com/ – Really well-written tutorials on all sorts of electronics topics. I stumbled across this one searching for information on Charlieplexing ICs from Maxim. There are good tutorials on the I2C and SPI protocols, touch screens, LCDs, etc. Visit this place. It’s cool.
http://circuitcalculator.com/ – Collection of very handy circuit calculators (duh), like trace widths and whatnot. Super handy.
http://www.mcuexamples.com/PCB-Trace-width-calculator.php – Also, a nice little circuit trace width calculator. I dig it.