I'm always on the lookout for enabling technology to push the envelope. Here is a viewlet illustrating how to integrate Facebook data into your flow. It uses a preprocessor that will help you integrate JSON in general into your data integration world.
There are a few pieces to the jigsaw. ODI provides an XML driver that can be used to process XML data from the filesystem, http or ftp for example. ODI 11.1.1.7 has improved this greatly by leveraging Oracle standard XML schema and parsing components. Transforming JSON to XML is one approach which is convenient for when you already have XML based tools or utilities. With this utility you can load JSON data into your data integration flows and in the process understand more about the data (when we reverse engineer the JSON we get a schema). Using this we can integrate arbitrary JSON data such as social data feeds from Twitter, Facebook, Google, and aggregators like Datasift among many others.
Watch the viewlet to see it in action.