Embodiments of the present invention address deficiencies of the art in respect to alert management in an activity-centric collaborative computing environment and provide a novel and non-obvious method, system and computer program product for activity thread integration of an alert log. In one embodiment of the invention, an alert log activity thread integration method can be provided. The method can include logging a reference to an alert for an activity in an activity thread, and, in response to the selection of the alert from within the activity thread, displaying the content of the alert. For instance, logging a reference to an alert for an activity in an activity thread can include creating a branch of the activity thread for inserting all alerts pertaining to the activity and inserting the reference to the alert in the created branch.