1. A method comprising: while a conference is occurring, generating activity records for activities related to the conference in response to detecting occurrence of the activities; wherein the activity records are generated while a recording of the conference is being recorded; wherein the activity records are generated independent of the recording of the conference; wherein the activity records include a particular activity record for a particular activity whose occurrence is not recorded in the recording of the conference; wherein the particular activity is detected at least in part by monitoring actions of one or more conference participants separately from the recording of the conference using a source that is not involved in the conference and is not involved in the recording of the conference; wherein each activity record includes at least (a) information about the corresponding activity, and (b) timing data that indicates when, within the conference, the corresponding activity occurred; after the conference has ended, extracting the timing data from the particular activity record for the particular activity that occurred during the conference; and using the timing data to locate a position, within the recording of the conference, that corresponds to when the particular activity occurred; wherein the method is performed by one or more computing devices.