Apple
TCP and UDP ports used by Apple software
Microsoft
Lists
http://en.wikipedia.org/wiki/Default_password
http://en.wikipedia.org/wiki/List_of_file_formats
http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers
A List of SMTP and POP3 Server
https://en.wikipedia.org/wiki/List_of_HTTP_status_codes
Processors
http://nl.wikipedia.org/wiki/Lijst_van_AMD_Athlon_XP_microprocessors
http://www.intel.com/products/processor/atom/specifications.htm
http://en.wikipedia.org/wiki/List_of_Intel_Atom_microprocessors
http://en.wikipedia.org/wiki/Intel_Core
http://en.wikipedia.org/wiki/List_of_Intel_Core_2_microprocessors
Intel AMT
http://en.wikipedia.org/wiki/Intel_Active_Management_Technology
http://www.realvnc.com/products/viewerplus/1.1/docs/ae1017337.html
Networking
http://en.wikipedia.org/wiki/Private_network
http://en.wikipedia.org/wiki/List_of_assigned_/8_IPv4_address_blocks
http://en.wikipedia.org/wiki/Network_address_translation
http://en.wikipedia.org/wiki/List_of_device_bandwidths
https://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers
http://en.wikipedia.org/wiki/Multicast
https://en.wikipedia.org/wiki/Multicast_DNS
http://en.wikipedia.org/wiki/Multicast_address#Ethernet
http://en.wikipedia.org/wiki/Protocol_data_unit
https://support.kaspersky.com/9297#block1
Networking IEEE
https://en.wikipedia.org/wiki/IEEE_P802.1p
Networking Wireless
radio-electronics.com – 802.11-channels-number-frequencies-bandwidth.php
Network filtering
http://en.wikipedia.org/wiki/Firewall_(networking)#First_generation_-_packet_filters
http://en.wikipedia.org/wiki/Iptables
Networking Firewall
http://en.wikipedia.org/wiki/Martian_packet
Networking Microsoft
technet.microsoft.com/en-us/library/cc940063.aspx
Networking Internet
Mailbox names for common services, roles and functions.
Networking internet certificates
http://en.wikipedia.org/wiki/Intermediate_certificate_authorities
Open Web Application Security Project (OWASP) | Cryptographic_Storage_Cheat_Sheet
Software
http://en.wikipedia.org/wiki/NTFS_junction_point
http://
en.wikipedia.org/wiki/History_of_Microsoft_Office
Microsoft
http://en.wikipedia.org/wiki/Windows_Server_2012
VMware
http://en.wikipedia.org/wiki/VMware_ESX
Hardware
Printers
http://en.wikipedia.org/wiki/Printer_Command_Language
Standards
http://en.wikipedia.org/wiki/KNX_(standard)
Standards Hardware
http://en.wikipedia.org/wiki/Modular_connector
Games
http://en.wikipedia.org/wiki/List_of_game_engines
Administrations
http://en.wikipedia.org/wiki/Small_Business_Administration
Other
http://www.phenoelit-us.org/dpl/dpl.html
https://en.wikipedia.org/wiki/Layer_8