General breastfeeding information:

https://www.unicef.org.uk/babyfriendly/baby-friendly-resources/support-for-parents/

https://www.laleche.org.uk/

https://www.breastfeedingnetwork.org.uk/

https://www.nct.org.uk/parenting/breastfeeding-concerns

https://kellymom.com/

http://breastfeeding.support/

Milk donation:

http://www.ukamb.org/

Breastfeeding and medication:

https://www.breastfeedingnetwork.org.uk/drugs-factsheets/

Infant sleep:

https://www.isisonline.org.uk/

Multiples:

https://www.tamba.org.uk/

Mental health issues for parents:

https://www.nhs.uk/conditions/post-natal-depression/

https://www.mind.org.uk/information-support/types-of-mental-health-problems/postnatal-depression-and-perinatal-mental-health/support-and-services/

Nutrition from pre-conception to 5 years:

http://www.firststepsnutrition.org