My parents first of all, and I think they were probably influenced by Dobson. My mum said I ripped up their copy of 'Dare to Discipline' when I was a toddler. :P I was smacked every day for a long time - I was very strong willed. My younger siblings didn't get punished nearly as much. My mum is anti-smacking now. She really hated it when I was smacking my dd before I found out about GBD, but my dad supported me. However I have since told him that I don't believe in it any more, and will probably talk to him more about it when I see him next. I am very close to my dad and always have been, despite the punitiveness in my upbringing.
Before my dd was born I read 'Babywise'. The problem wasn't so much the schedule feeding, which I didn't really follow, but the philosophy, that my child was trying to control me and that I should control her instead.
It is hard to get that out of my head. Babywise seems to be quite popular in Christian circles here in NZ. I have seen it in our local Christian bookshop.