35 Providing comprehensive business-to-business electronic commerce and electronic marketplace services to businesses, namely, corporate web sites, virtual trade booths and store-fronts, on-line product catalogs, on-line auctions, offer exchanges, e-business centers, and on-line logistics support (including billing, shipping, payment settlement, and tariff and tax computation), in partnership with leading business communities such as vertical trade associations, regional chambers of commerce and on-line electronic business communities