Advertising and Business

Owner

NIELSEN NATIONAL RESEARCH GROUP, INC.

Jul 27, 1999

Advertising and Business

Owner

NIELSEN NATIONAL RESEARCH GROUP, INC.

Dec 7, 1999

Electrical and Scientific Apparatus

Owner

NIELSEN NATIONAL RESEARCH GROUP, INC.

Oct 8, 1996

Computer and Scientific

Owner

NIELSEN NATIONAL RESEARCH GROUP, INC.

Jan 11, 1994