Pinterest is a photo sharing web and mobile application containing one of the world’s most robust catalog of ideas. Registration is required for the users to create boards on Pinterest. Users can upload, sort, save, follow and manage images and pins on Pinboards.  

Google's Multi-Channel Funnels Reporting API enables you to request Multi-Channel Funnels data for an authenticated user. Data is derived from conversion path data, which shows user interactions with various traffic sources over multiple sessions prior to a conversion. It allows you to analyze how multiple channels influence conversions over time.