TECH CRUNCH - Pinterest rolls out new features for advertisers and brands to promote their products to users on its site. A new 'slideshow for collections' feature pulls products from brands' catalogues and automatically turns them into a 'collections ad.' The other feature called 'merchant details' allows brands to showcase their values on their profile. Pinterest is also testing a new 'Idea Ads with paid partnership' feature that is a joint partnership between creators and advertisers.