DigiCash　 http://www.digicash.com/

ECOM　 http://www.ecom.or.jp/

First Virctual Holdings http://www.fv.com/

Security First Network Bank　 http://www.sfnb.com/

MasterCard International　 http://www.mastercard.com/

Mark Twain Bank　 http://www.marktwain.com/

Verisign,Inc.　 http://www.verisign.com/

Visa International　 http://www.visa.com/