16. A non-transitory computer readable storage medium storing one or more programs for execution by a computer system, the one or more programs comprising instructions to: receive a search query; in response to receiving the search query: obtain, from a message repository, conversations relevant to the search query; create a list of conversations representing at least a subset of the obtained conversations, wherein each conversation in the list of conversations is represented as a single item, and at least one of the conversations in the list of conversations comprises two or more electronic messages from distinct senders; identify, for each conversation in the list of conversations, a portion of conversation content relevant to the search query; and produce, for concurrent display at a client, a search result including at least the list of conversations, and the identified portion of conversation content for each conversation in the list of conversations.
16. A non-transitory computer readable storage medium storing one or more programs for execution by a computer system, the one or more programs comprising instructions to: receive a search query; in response to receiving the search query: obtain, from a message repository, conversations relevant to the search query; create a list of conversations representing at least a subset of the obtained conversations, wherein each conversation in the list of conversations is represented as a single item, and at least one of the conversations in the list of conversations comprises two or more electronic messages from distinct senders; identify, for each conversation in the list of conversations, a portion of conversation content relevant to the search query; and produce, for concurrent display at a client, a search result including at least the list of conversations, and the identified portion of conversation content for each conversation in the list of conversations. 19. The storage medium of claim 16 , wherein the one or more programs further comprise instructions to: identify within the identified conversation content portion first text relevant to the search query; identify within the identified conversation content portion second text which surrounds the first text; and include the first text and second text in the search result.