How is this site not stickied or added to new and information, heck even solutions section!
Better than a diagram, show you so much more than a page of typing can and easy to reference number marks when people ask question
Q"my AK fire selector isn't working right"
A"reference this page from 1 min to 2:05"
http://www.mechbox.com/site/ak47-resassembly-video.html
maybe over simplified example but you get the idea