topology

DigitalSculpture

http://www.pig-brain.com/tut02/tut02_02.htm
3d modeling tutorial on limb deformation: three wireframe cylinders comparing edge-loop layouts that keep elbows and knees from collapsing

crisis center

http://forums.cgsociety.org/showthread.php?p=5101568

general tutorials

great low poly hair - http://www.cgarena.com/freestuff/tutorials/maya/lowpolyHair/index.html http://en.9jcg.com/featured_artists/paul_tosca/low_poly_game_character_hair_1.php
http://www.highend3d.com/maya/tutorials/character/300-1.html
good low poly guy - http://www.bakaneko.com/howto/computer/3d/character/page01.html
good head mesh tutorial - http://www.free3dtutorials.com/index.php?id=20

no matter how much i look at stuff each model is a new adventure

Poles and Loops thread on Blenderartists http://blenderartists.org/forum/showthread.php?t=93651
Bobo the Seal - http://www.bobotheseal.com/temp/WIP/
The No-Joke Topology Guide for Serious 3D Modelershttp://megamorph.gigacities.net/TopologyGuide/TopologyGuide.htm
Bay Raitt - http://cube.phlatt.net/home/spiraloid/tutorial/modeling.html
Subdivision Modeling Tips - http://maxrovat.sns.hu/subdiv/subdivmodeling.htm