SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of December, 1998 ____________________ THE DIALOG CORPORATION PLC (exact name of registrant as specified in its charter) ____________________ THE COMMUNICATIONS BUILDING 48 LEICESTER SQUARE LONDON WC2H 7DB, ENGLAND (Address of Principal Executive Offices) _____________________ Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F: FORM 20-F (X) FORM 40-F( ) Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934: YES ( ) NO (X) On December 21, 1998, The Dialog Corporation plc (the "Registrant") announced that Allen Thomas, a non executive director, has been appointed Deputy Chairman of the Registrant's board of directors, effective immediately. EXHIBIT INDEX Exhibit No. Description Page No. ----------- ----------- -------- 99.1 Press Release, "The Dialog Corporation 2 Appoints Allen Thomas, Deputy Chairman," dated as of December 21, 1998.