Marketdata, New York, has a new fax number, 516-791-7759.
 
Tucson-based Nordensson Lynn Advertising and NLS Public Relations have added a full-time research division.

Trinet, Inc. has sold its national database business to American Business Information, Inc. Trinet will continue selling its focused business directory and local list products under the new corporate name of Contacts Influential, Inc.

ACG Research, St. Louis, has remodeled its focus group facility. For more information, contact Vicki Savala.

CSi has opened a new qualitative research center in downtown Boston: Focus on Boston, at 400 Atlantic Avenue, adjacent to the Boston Harbor Hotel. Paul L. Bolden is managing director.

The Question Box has changed its name to Ask Southern California, Inc. The firm will remain at the same location.

Margery Isis Schwartz, formerly of Eastern Airlines and Market Segment Research, has formed her own marketing research company, Aspen Research, Inc., at 401 Miracle Mile, Ste. 411, Coral Gables, FL, 33134.