Digg extractors

Wandora supports extracting information from Digg into a topic map. There are two ways to extract information from either source:

• The URL extractors look up URLs from topics in context and try to find posts matching those URLs from Digg. If successful, they will add information (description, tags) retrieved from the web api to the topic at hand.
• The post extractors will extract posts with a certain criteria (currently only the most recent posts by specified users) and create topics into the topic map, merging with those topics that have matching subject identifiers.