swe

http://petl.readthedocs.org/en/latest/

https://github.com/orientechnologies/orientdb-etl/wiki/Extractor

http://ko.hortonworks.com/blog/discovering-hive-schema-in-collections-of-json-documents/

http://www.etladvisors.com/2014/01/02/using-trest-and-json-components-to-access-api-data/

http://www.manageability.org/blog/stuff/open-source-etl/view

http://delray.io/blog/2013/06/10/latest-update-to-delray-version-05.html

http://www.manageability.org/blog/stuff/open-source-etl/view

http://petl.readthedocs.org/en/latest/io.html#json-files

http://giraph.apache.org/quick_start.html

http://blog.bizmerce.com/?p=1469

http://www.alchemyapi.com/

http://northconcepts.com/