A browser add-on apparently designed to notify you when searching for an item which can be purchased from a Bonus Points Mall merchant, without the need to navigate through the portal, and also serves discount offers (which means cards that do not participate in Membership Rewards may also benefit).
https://www.bonuspointsmall.com/insi...d_benefits.htm
Inasmuch as Bonus Points Mall is limited to USA-issued cards I assume this program will also not accept cards issued in other markets.
Sounds very similar to the browser toolbar offered by the American Airlines AAdvantage shopping portal.