Activ Financial Systems, Inc. 1-212-964-2600	ITG, Inc. 1-212-444-6300
Bloomberg L.P. 1-212-318-2000	Logical Systems, Inc. (barchart.com) 1-312-554-8122
Broadcast Teleinformatica, Ltd. (Brazil) +55-11-856-2003	Plantureux, SA (France) +01-43-94-94-94
CQG Inc. 1-800-525-7082	QuickFarm, Inc. 1-843-577-6339
CMA, Inc 1-212-382-1822	Rolfe & Nolan Systems, Inc. 1-312-559-0250
Computer Voice Systems, Inc. 1-312-980-8200	Reuters 1-800-738-8377, option 6
ComStock (IDC) 1-914-381-7000	R.J. O'Brien, Inc. 1-312-373-5000
Data Transmission Network 1-800-485-4000	Sungard Data Management Solutions 1-212-506-0300
eSignal (IDC) 1-800-835-5481	Thomson Financial (TFI) 1-646-822-2000
FMR Corporation (Fidelity Investments) 1-617-563-6496	Telkurs AG (Switzerland) +41-44-279-51-11 U.S. Office: 1-203-353-8100
Farms Technology LLC 1-913-317-9800	Track Data Corporation 1-800-367-5968
FRI Corporation 1-888-937-3374	Trade Signal Corporation, Ltd. (Ireland) +353-21-435-5361
FutureSource (eSignal) 1-800-835-5481	TradeStation Technologies 1-800-556-2022
InfoShare Communications, Inc. 1-212-361-4636	Telemet America, Inc. 1-800-368-2078
Infotec (Switzerland) +41-22-715-44-33	Tenfore Systems Limited (U.K.) +44-20-7739-1016
Interactive Data Corporation (IDC) 1-781-687-8800	Yahoo, Inc. 1-408-731-3300