We have delayed cord clamping with all three births. We have waited until the cord stopped pulsating - around 15 minutes to 20 minutes if I recall correctly, although we were probably a bit longer because we didn't cut the cord until the placenta was born and DW was almost out of the water.

And yes, there are lots of well understood benefits to delayed cord clamping, although many OBs are still wary of the practice because of a mistaken belief that it increases the risk of the baby developing jaundice.