Oh - another thought on dealing with bragging moms popped into my head last night. (I do not mean someone who wants to talk about their child's accomplishments, whether that child is advanced or not. I'm talking about the ones mentioned in this thread who won't let anyone else get a word in edgewise and are constantly making comparisons with other people's kids.)
I've found that many of these parents are really insecure in their parenting and won't admit it. (I'm insecure about my parenting, but I'll admit it.) I never did it deliberately, but realized last night that I sometimes defuse some of it by the way I talk about my kids. DS1 is a neat kid - smart, athletic, socially adept, creative, etc. - and a few parents I know are a little touchy about him. What I've done, without realizing it, is play up my luck in having such a neat kid. If the other parent doesn't feel as though I'm saying "look what an amazing mom I am", they tend to get off the defensive a little...and the annoying bragging eases up. This also has the advantage of being true. I've tried to nurture ds1's talents, and foster his interests, but I'm certainly not responsible for his artistic skill or gymnastic ability, yk?
ETA: Sorry - this wasn't really relevant to this particular thread. I was thinking I was in the original one...