Pinterest will now automatically add attribution to items grabbed from 500px, Kickstarter, SoundCloud, Etsy, and Slideshare. (PandoDaily previously reported on Pinterest’s automatic attribution when the service integrated with Flickr, Behance, Vimeo, and YouTube.) Users will now be able to interact with pinned objects directly from user’s Boards as well through Pinterest’s new integration with SoundCloud, Slideshare, and Kickstarter videos.