An online system for permitting users in a data network to manage inventories of their collectibles includes a database of collectibles, user inventory files, user information files, a database of needed items and items available for sale, and a server-based task for managing and searching the database of needed items and items available for sale. The digital audio format link in various embodiments comprises a SPDIF link, an AESEBU link, an HDMI link, or an I2S link. Other types of search procedures can be used. An upper electrode of the capacitor is formed of metal film and opposed to the lower electrode with the silicide protection film sandwiched in between. The caulking tube portion is constricted in diameter and held in engagement with an axial edge portion of the positioning projection so as to form an axial positioning portion. The compounds may be used to inhibit osteoclast survival, formation, andor activity; to inhibit conditions mediated by osteoclasts andor characterised by bone resorption; in the treatment of bone disorders such as osteoporosis, rheumatoid arthritis, cancer associated bone disease, Paget’s disease; andor in the treatment of conditions associated with inflammation or activation of the immune system.