Do you want highpoly or lowpoly? Facial animations or not? Anime usually has less detailled heads so you can get most of it simply by dropping some details and altering proportions. A good way to get a base is to draw a front view with edges and moving them around so the sideview looks good as well, then use them for…
This guy does an anime style head. While it is not poly by poly or box modeling you can still use those methods to create the head. http://www.comet-cartoons.com/3dhelp.php
this is your best bet right here buddy. Also just a great general modeling tut and will teach you some usefull info about edge loops http://mr2k.3dvf.net/tutorials/max/tutorials_joan.htm