Abstract: A system can include one or more processors and one or more non-transitory computer-readable media storing computing instructions that, when executed on the one or more processors, cause the one or more processors to perform operations: receiving a new notification; determining, using a binary search algorithm, a number of one or more notifications, wherein an interval of the binary search algorithm comprises a time period between a reclamation pointer and an ingestion pointer; when the number of the one or more notifications is greater than a maximum number of notifications, removing, from a central data store, at least one notification of the one or more notifications; and storing the new notification in the central data store. Other embodiments are described.

Abstract: Systems and methods including one or more processors and one or more non-transitory media storing computing instructions that, when executed on the one or more processors, cause the one or more processors to perform: storing one or more notifications in a data store; receiving a new notification; determining a respective number of notifications in each respective segment of a plurality of approximately equal segments; using the respective number of notifications in each respective segment of the plurality of approximately equal segments to determine a number of the one or more notifications; when the number of the one or more notifications is equal to or greater than a maximum number of notifications, removing at least one notification of the one or more notifications; and before or after removing the at least one notification, storing the new notification in the data store.

Abstract: Systems and methods including one or more processors and one or more non-transitory storage devices storing computing instructions configured to run on the one or more processors and perform storing one or more notifications in a data store; receiving a new notification; determining a respective number of notifications in each respective segment of a plurality of approximately equal segments by subtracting a cumulative number of notifications in the plurality of approximately equal segments from a preceding number of notifications in a preceding segment of the plurality of approximately equal segments; using the respective number of notifications in each respective segment of the plurality of approximately equal segments to determine a number of the one or more notifications; when the number of the one or more notifications is equal to or greater than a maximum number of notifications, removing, from the data store, at least one notification of the one or more notifications; and before or after removing the a

Abstract: Systems and methods including one or more processors and one or more non-transitory storage devices storing computing instructions configured to run on the one or more processors and perform acts of storing one or more notifications in a central data store pursuant to one or more user preferences; receiving a new notification; determining when a number of the one or more notifications is equal to a maximum number of notifications set in the one or more user preferences using a reclamation pointer and an ingestion pointer; when the number of the one or more notifications is equal to the maximum number of notifications, moving the reclamation pointer forward by one or more messages; deleting, from the central data store, notifications of the one or more notifications that are behind the reclamation pointer; storing the new notification with the one or more notifications in the central data store; and facilitating delivery of the new notification of the one or more notifications from the central data store to on

Abstract: Systems and methods including one or more processors and one or more non-transitory storage devices storing computing instructions configured to run on the one or more processors and perform acts of storing one or more notifications in a central data store pursuant to one or more user preferences; receiving a new notification; determining when a number of the one or more notifications is equal to a maximum number of notifications set in the one or more user preferences using a reclamation pointer and an ingestion pointer; when the number of the one or more notifications is equal to the maximum number of notifications, moving the reclamation pointer forward by one or more messages; deleting, from the central data store, notifications of the one or more notifications that are behind the reclamation pointer; storing the new notification with the one or more notifications in the central data store; and facilitating delivery of the new notification of the one or more notifications from the central data store to on