Seattle-based FreeShopcom (FSHP) April 13 announced it will join forces with San Francisco-based NextCard (NXCD) to disclose a co- branded credit card for its customers. Users of the FreeShop NextCard can take advantage of NextCard privileges, including a one- click NextCard Concierge wallet that remembers passwords and fills in order forms. The FreeShop NextCard will be available in June 2000 at