Amazon will have to provide information about the ads running on its platform in a publicly accessible online archive after all, following a decision by the European Union’s highest court Wednesday.

Efforts by tech giants to be more transparent about the ads they run are — at very best — still a work in progress, according to a report looking at ads transparency tools. The report comes about a ...

Amazon must now share details about the ads it serves in the European Union through a public library. The retail giant is being forced to provide more transparency about its ad operations under the EU ...