When PIDs aren't there. Tales from Crossref Event Data

Presentation at Pidapalooza 2016. Crossref Event Data (CED) tracks the use of scholarly publications across the web. We use PIDs to reference publications. In some places, like Wikipedia, PIDs are a commonplace sight. But in places like Twitter and Facebook, they are few and far between. CED looks for article landing pages and tries to convert them back into PIDs. How do we track publications on platforms that don't encourage the use of PIDs? Hear examples, methods, success and horror stories as well as our plans for CED.