babyandbump is great but ridiculously huge. There are just way to many forums, its crazy ! It was great whilst I was pregnant and I use it now and again but half the time Id forgotten where and what Id posted !babyandbump.com is alright, and also netmums? I'm not keen on netmums myself though :-/
It's hard to find any friendly parenting sites when peoples views on parenting are never the same as one another so there always tends to be debates?
Baby centre is good, and they send you weekly emails when you're pregnant full of so much information. I still get emails from them about my toddlers milestones, etc. I didn't really use the forum side of it but it is a really good site xxI was always on Babycentre, you join the birth board for the month your child was born. Or they have boards for any other baby / child related topic.