Have you tried CApers Jones. There are some pretty good metrics primers there.
Some sites whcih could give you more and which help establish metrics programs and provide glossaries include: http://www.tenstep.com
PMI (project management institute sites) http://ww.isbsg.com ( this is a metrics and bench-makring site)
follow the links from ten-step; there is real fund available there.
Life should NOT be a trip to the grave with the intention of arriving safely in an cool and well preserved body, but rather to skid in, chocolate in one hand, beer in the other, body wrecked, totally worn out and screaming WOO HOO what a ride!