Exhibit 23.1

              Consent of Ernst & Young LLP, Independent Auditors

We consent to the incorporation by reference in the Registration Statements
(Form S-8 No. 333-11139) pertaining to the Boston Communications Group, Inc.
1996 Stock Option Plan, (Form S-8 Nos. 333-11191) pertaining to the Boston
Communications Group, Inc. Non-Qualified Stock Options Pursuant to Written
Option Agreements, (Form S-8 No. 333-11195) pertaining to the Boston
Communications Group, Inc. 1996 Employee Stock Purchase Plan, (Form S-8 No. 333-
57643) pertaining to the Boston Communications Group, Inc.1998 Stock Incentive
Plan and (Form S-8 No. 333-57641) pertaining to the Boston Communications Group,
Inc. Non-Statutory Stock Option of our report dated January 29, 1999, with
respect to the consolidated financial statements and schedule of Boston
Communications Group, Inc. included in the Annual Report (Form 10-K) for the
year ended December 31, 1998.

                                                      /s/ Ernst & Young LLP


Boston, Massachusetts
March 29, 1999