The source should begin harvesting shortly and document will begin to show up in the Infinit.e gui.
Text Extraction and Entity extraction are advanced topics and are beyond the scope of this page. For more information, see section Source Management Common Use Cases.
Not all the text/entity extractors are necessarily available for your system. For example, AlchemyAPI is a commercial service, and OpenCalais is free but requires an API key. Boilerpipe/Tika/TextRank are all built into the Infinit.e platform and are always available. Contact your system administrator to understand which are available.
Editing Sources
You cannot edit sources using the Chrome extension.
Once a source has been modified using the Source Editor, you can no longer add additional webpages to it using the Chrome extension.