Youth is defined by Webster's New World Dictionary as, "The time of life when one is young; especially: a: the period between childhood and maturity b: the early period of ...
http://en.wikipedia.org/wiki/Youth

Learning is part of youth, and life-long learning is the fountain of youth for the mind.
http://youth.net/

YOUTH.ORG is a service run by volunteers, created to help self-identifying gay, lesbian, bisexual and questioning youth.
http://www.youth.org/

Welcome to YouthSpecialties.com ... Let us know who you are, and we'll show you all the things YS has for you!
http://www.youthspecialties.com/

Youth Speaks organizes the National Youth Poetry Slam. The group brings young people together across community, school, and neighborhood lines through the written and spoken word.
http://www.youthspeaks.org/