The Internet Advertising Bureau (IAB) has taken steps to regulate the £216m native ad industry, providing its first set of industry-backed guidelines devised to signpost content and native ads as paid-for content for consumers. The trade body has released a set of guidelines for marketers, rubber stamped by other UK trade bodies -– ISBA, AOP, CMA –- which detail how they should label ads which have been devised to appear like editorial.