For centuries, people have stuffed prayers written on scraps of paper into the ancient cracks in the Western Wall in the Old City of Jerusalem. In recent years, they could fax or email their prayers. The Western Wall now has its own address on the social network Twitter. The prayer service’s founder, Alon Nil, says petitioners can tweet their prayers, and they will be printed out and taken to the wall, where they will join the thousands of handwritten notes placed by visitors who believe their requests will find a shortcut to God by being deposited there.