The document discusses panels on the BannersBroker advertising platform. It defines what a panel is, as a visual representation of an advertisement spot that shows earnings. It describes different types of panels (complementary, purchase, re-purchase). It outlines how to qualify panels through complementary traffic, sales credits, organic traffic or traffic packs. It provides details on re-purchasing panels and locking panels to release sales credits and get impressions. It also highlights details on panel completion times and how panels can be rolled up to higher levels.