1. A method performed by a server system for automatically generating personalized memory compilations and eliciting latent memories, the method comprising: a) receiving information for a group, wherein the group has members and is defined based on a shared experience, and wherein the information for the group identifies the group members; b) after receiving the information identifying the group members, assembling a content collection through nominal group recall by, for each of a plurality of group members, independently performing a set of acts comprising: i) prompting that member to provide computer readable data items representing memories of that member which are relevant to the shared experience; ii) receiving, from that member, one or more computer readable data items representing memories of that member which are relevant to the shared experience; iii) storing the one or more computer readable data items received from that member in the content collection; c) selectively including data items representing an intersection of memories of different individuals in personalized memory compilations of the plurality of group members by, for each of the plurality of group members, performing a set of acts comprising the following acts with that member as subject member: i) receiving, from the subject member, memory enrichment information, wherein the memory enrichment information comprises information identifying other group members whose memories should be included in a personalized memory compilation for the subject member; and ii) generating the personalized memory compilation for the subject member, wherein the personalized memory compilation for the subject member comprises: A) the computer readable data items stored in the content collection which represent memories of the subject member which are relevant to the shared experience; and B) the computer readable data items stored in the content collection which represent memories of other members identified as members whose memories should be included in the personalized memory compilation for the subject member; and d) eliciting latent memories from the plurality of group members through providing group members access to each others' memories in a controlled manner by, for each of the plurality of group members, providing that group member with the personalized memory compilation generated for that member, wherein providing group members access to each others' memories in a controlled manner comprises providing group members access to each others' memories after assembling the content collection through nominal group recall.