Hi Coach,

US Lacrosse offers some great resources on their website. You can find rules and a bunch of other stuff.

Check it out here: http://www.uslacrosse.org/youthportal/index.phtml

heres a link with rules. its called laxrules.com.
http://www.laxlinks.com/rules/

you can go to uslacrosse.org to find some rules

this video outlines some of the rules:

http://www.youtube.com/watch?v=e-dkj4aB0Rs

Men's rules- http://www.uslacrosse.org/the_sport/mens_rules.phtml
Woman's rules- http://www.uslacrosse.org/the_sport/womens_rules.phtml

Hope this Helps