10. The non-transitory computer readable data storage medium article of manufacture of claim 8 , wherein acquiring the interaction record includes: synchronizing the community index including: selecting the community user; sending a delivery request to the selected community user for the current version of the community index; comparing the delivery request to the community index of the selected community user; and receiving the current version of the community index from the selected community user if the delivery request matches the community index of the selected community user.
11. The non-transitory computer readable data storage medium article of manufacture of claim 10 , wherein the method further comprises: synchronizing the interaction record including: sending a delivery request to the selected community user for a current version of the interaction record; comparing the delivery request to the version of the interaction record of the selected community user; receiving the current version of the interaction record from the selected community user when the delivery request matches the interaction record of the selected community user.