http://www.onstrat.com/osint/

http://www.phibetaiota.net/

http://www.phibetaiota.net/assets/uploads/2013/07/2013-07-11-OSINT-2ool-Kit-On-The-Go-Bag-O-Tradecraft.pdf

http://www.osint.fail/

http://www.uk-osint.net/