Abstract: In an embodiment, inventories are received from clients, and the inventories identify products that are installed at the clients. In response to a request from a client, a document is selected based on a dependency indication. In an embodiment, the document is selected if the dependency indication indicates the document is dependent on a product and the product is installed at the client. In an embodiment, the document is selected if the dependency indication indicates the document is dependent on a product collection and one of the products in the collection is installed at the client. In an embodiment, the document is selected if the dependency indication indicates the document is dependent on the type of the client and independent of products that are installed at the client. The identifier and address of the selected document are added to a page, and the page is sent to the client.