I prefer the child height/weight measurements on about.com. Mostly because they give more "exact" estimates than the general 50% or 75%.
Here's Kiddo's 9 month's info:
At 9 months:
your child is 22.5 pounds, and that is
at the 93th percentile for weight.
your child is 28.5 inches, and that is
at the 74th percentile for height.
Love: Numbers, of course!
Hope: I can get a bit more studying tomorrow than I accomplished today...
Do: chill some before bed.