This page has links to blog posts that explain "how I do it."  It seems like there is more than one way to do some things with crochet.  Magic ring or no magic ring?  How do I hide the end tail of yarn after I attach a piece?  How do I color change?  What are some good ideas for photographing amigurumi?  Well...this is just what I do.  It's not like the golden rules for crochet  =)
Crocheting Amigurumi
Not sure how to change colors when crocheting  amigurumi?  This might help clarify!
Photographing Amigurumi 


