Cisco Commands – https://www.pantz.org/software/ios/ioscommands.html
Cheat Sheets – http://packetlife.net/library/cheat-sheets/
Chipset – http://www.ybet.be/en-hardware-1-08/chipset.htm
Cisco OSPF Guide – http://www.smartpctricks.com/2014/04/cisco-ospf-configuration.html
Deep web news – http://www.deepdotweb.com/
IT leksikon – http://techterms.com/
Packet tracer Labs– http://cisco.edu.mn/Download/
Packet tracer training – http://www.packettracernetwork.com/labs/packettracerlabs.html
Router on a stick – http://ccna19.blogspot.dk/2013/09/ccna-router-on-stick-lab-with-packet.html
Router RIP – http://computernetworkingnotes.com/routing-static-dynamics-rip-ospf-igrp-eigrp/rip-routing-configurations.html
Router static route – http://computernetworkingnotes.com/routing-static-dynamics-rip-ospf-igrp-eigrp/basic-static-route.html
Script database – http://www.hotscripts.com/
Subnet mask cheat sheet – http://www.aelius.com/njh/subnet_sheet.html
Tips, tricks, guides – http://www.theworldsend.net/
VLAN information – http://danbit.dk/info/vlan/
IT news feed – https://news.ycombinator.com/news/
Deepweb nyheder – https://www.deepdotweb.com/
Hacking nyheder – http://thehackernews.com/
IT sikkerheds blog – http://securityaffairs.co/wordpress/
IOS images – http://www.networkvn.net/2014/06/cisco-ios-image-for-gns3.html