London--19 May 1998--The certificate verifies individual advertisers statistics which deliver data on the activity of a particular site for a specific campaign. Accurate information on user activity allows the campaign message to be measured and provides independent accountability.

ABC //electronic recorded over 34 million page impressions for the Yahoo! UK and Ireland site, www.yahoo.co.uk during the period 1-31 March 1998. The audit reported 34,579,546 page impressions.

Richard Foan, ABC //electronic said, "We have worked very closely with ABC in the States to complete this audit for Yahoo! UK and Ireland. The inclusion of advertising campaign specific data in this audit is a major step forward for the industry and responds to our customers and their advertisers needs."

Dick Bennett, Senior Vice President of Audit Services for ABC US and Canada added "We at ABC are delighted to be part of such an important stage of web advertising developments in the UK. With 140 sites, ABC Interactive is pleased to complement the work done by ABC //electronic in this global medium."

UK Sales Director, Bill Gash commented, "Our advertising statistics provide clients and their agencies with accurate and reliable information on a daily basis. This allows them to track user activity and the effectiveness of their campaign as it proceeds. The independent validation of the statistics and the number of the monthly page impressions recorded, provides a welcome endorsement to the quality of service that the Yahoo! Network offers."

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ABC UK was founded in 1931 and is the largest circulation auditing company in the world with over 3000 member publications, exhibitions and web sites. It audits over 1600 newspapers and over 1400 consumer and business publications. It is a not for profit organisation and is run for and by the industry. The company exists to provide both buyers and publishers with information independently audited and reported to standards agreed by the members.

ABC //electronic was established in 1996 to aid the buying and selling of advertising space on UK based Internet sites. It aims to be the source of independently audited data in Internet traffic measurement in the UK using internationally agreed standards. An ABC //electronic audit uses census based measurements that reflect total activity as opposed to ratings or samplings based research.