New York—The Interactive Advertising Bureau has taken a new tack in opposing Microsoft Corp.'s new do not track browser standards, actively urging its members to ignore the data-block function set by default in Microsoft's Internet Explorer browser. In its statement today, the IAB endorsed the position of the Digital Advertising Alliance, a consortium of advertisers and marketing groups promoting ad industry self-regulation of online data tracking. The alliance also opposes the default setting in version 10 of Internet Explorer, saying it takes away user choice. The Council of Better Business Bureaus and the Direct Marketing Association have also pledged not to enforce do not track signals set by default in IE10.