My case study is on a project the Canadian Film Board did in response to the 2008 economic crisis. They did a web documentary of average individuals affected by the crisis throughout Canada. The project involved video webisodes, photo essays, a map, and a blog. They call it one of their “interactive” projects on their website, but in the end, the participation was really low, so not sure it was really effective.
Here’s a link to the website: http://gdp.nfb.ca/intro