Australian breastfeeding Association:
Breastfeeding babies with clefts of lip and/or palate
Babies with a cleft of the lip only can usually breastfeed as a newborn. You can use your breast or fingers to block the cleft to help your baby to get proper suction.
The soft palate may have a cleft. This is often hard to see, so it may only be found after a few hours or days if your baby seems unable to breastfeed. The baby may make a clicking sound while breastfeeding or slip off the breast. The cleft will cause a break in the seal, which is needed for a ‘good’ breastfeeding ‘technique’.
Full article can be found here.
KellyMom.com has a great list of resources that can be found here.
CleftLipandPalatebreastfeeding.com has video, stories, medical articles, and more. Click here.