There's a bit of advocacy at Fed is Best:
Of course, some people see that as an anti-breastfeeding movement.
The rhetoric around breastfeeding is insane. Trying to do legitimate research online about it is almost impossible.
My least favorite part of breastfeeding advocacy is when people say it's free. Yes, it's free, as long as you ignore the extra time it takes for the mother that can't be shared with other caregivers (unless you pump, which takes more time), extra food you have to eat, the pump and various accessories, and the time spent cleaning all the little pump parts. Yeah, other than that it's free.