Abstract: A placard holder is a unitary structure having a left side, a right side and a bottom. Each of the left side, right side and bottom comprise the portions of a folded over, partial “capture” means, or partial “frame,” specifically comprising a left side frame, a right side frame and a bottom frame. The top of the placard holder is frameless such that a cautionary placard can be inserted into the partial frame that is created by the left side frame, the right side frame and the pair of bottom frames. In the preferred embodiment, the frames are folded-over portions of a unitary metal structure that forms the holder. The holder is attachable to a vehicle or other transport means for use when hazardous items are transported, the placard that is inserted into the holder being cautionary.

Abstract: A method and system is provided for triggering an advertisement for display via a computer network. One of a several part numbers is received from a user request. An advertisement to be displayed is triggered if (i) the user is associated with a pre-determined desired group corresponding to the triggered advertisement, and (ii) the user is not associated with a pre-determined no-show group corresponding to the triggered advertisement; and (iii) at least one of the received part numbers is included in the portion of part numbers. The triggering step further includes determining whether the triggered advertisement has exceeded a pre-determined maximum number of showings. An advertiser associated with the advertisement is notified of the triggered advertisement and the user. Further, responsive to the user request, stored information is searched for a part corresponding to at least one part number. Further, the user is classified by type within a vertical industry such as the airline industry.