Evey card in CardPi is the smallest unit of content. It is a mixture of text and imagery. Cards belong to series. Together they form nodes of a structure of showcasing collections of data in a organized and hierarchical way.<p>Suppose your are a small game studio. You have a single profile card that describes your studio. Then you have a top level series for each of your games, say game A and game B. Then with the series for game A you can have sub series for Items, Characters, Locations. You then have cards that belong to each of those subseries featuring the items, characters, locations. Suppose there is a card for character x. That card can be updated with posts, every update has discussion forums...  Best of all someone can quickly find all the characters in your game, all the locations and read information and discuss them.<p>Your point about a video is important. It has been considered but since there is considerable confusion about what this is for it seems wise to consider making one.