Your employees will love how you recognize their effort. Also Carnival Glass, Depression and Elegant Glass. Angela Bowey's Glass Museum - Featuring photographs of glass and text explaining all kinds of glass. Links to many useful and interesting glass sites. Glass Collectors' Club.
Membership is free.
Antique Legacy - Glassware and many other fine antiques and collectibles. Online catalog of fine antiques. Auction U.S. - Service for listing glassware to buy or sell via online auction. Azure - Glassware gifts and collectibles with a Middle Eastern flavor. Includes frosted and enameled glass bowls, vases, perfume bottles and candle holders.