Information sources
http://arcadesushi.com
http://au.ign.com
http://www.reddit.com/r/civ/comments/291avi/multiplayer_trading_bug/
http://www.cgmagonline.com

Source for how to perform exploits
http://megaman.wikia.com/wiki/Mega_Man_(video_game) (megaman 1 pause trick)
http://www.mariowiki.com/World_3_(Super_Mario_Bros.) (Mario infinite lives 3-1 [1])
http://www.gamefaqs.com/nes/525243-super-mario-bros/answers/278612-how-do-you-do-the-infinite-lives-trick (Mario infinite lives 3-1 [2])
http://zeldawiki.org/Glitches_in_Ocarina_of_Time#Bottle_Duplication (Zelda OoT)
http://metroid.wikia.com/wiki/Sequence_Breaking (Super Metroid)
http://steamcommunity.com/app/8930/discussions/0/648814841562595134/ (Civilisation V)
http://halo.wikia.com/wiki/Sword_flying (Halo 2)
http://www.playstationtrophies.org/forum/dark-souls/141476-helpful-glitch-easy-platinum-transfer-all-bottomless-box-items.html (dark souls)
http://www.cheatcc.com/psx2/gta3.html (GTA 3)
https://www.youtube.com/watch?v=aX2JEKVn-U4 (WoW)
http://finalfantasy.wikia.com/wiki/W-Item_Duplication_Bug (FFVII)
http://strategywiki.org/wiki/Super_Mario_64/Glitches#Bypass_The_Last_Star_Door_And_The_Endless_Stairs (Super Mario 64)
http://supersmashbros.wikia.com/wiki/Wavedash (super smash brothers melee)

Youtube sources
https://www.youtube.com/watch?v=g_oj_9udEEk (megaman 1)
https://www.youtube.com/watch?v=5-DNt_erbL4 (Mario [1])
https://www.youtube.com/watch?v=J-cWQFk9bi8 (Mario [2])
https://www.youtube.com/watch?v=s6gl69Ry0eI (Zelda OoT)
https://www.youtube.com/watch?v=h86UQHQ79U8 (Super Metroid Arm pump)
https://www.youtube.com/watch?v=e0opyh5LyqU (super Metroid walljump)
https://www.youtube.com/watch?v=K7TCJTkZ05g (super Metroid mockball)
https://www.youtube.com/watch?v=xl9YOIDjCN8 (super Metroid green gate glitch)
https://www.youtube.com/watch?v=nSsySTOW6xo (Civilisation V win screen)
https://www.youtube.com/watch?v=ygXr_LOsHmI (Civilisation V trade screens)
https://www.youtube.com/watch?v=MA_Oxw0IxwY (Civilisation V gameplay)
https://www.youtube.com/watch?v=86sn848uBvE (Mario Kart 64)
https://www.youtube.com/watch?v=AGUAANL5Mtg (Halo 2)
https://www.youtube.com/watch?v=NisxqdqX5X0 (dark souls bottomless box guide)
https://www.youtube.com/watch?v=rIFd7CgsKGE (dark souls twink invasion)
https://www.youtube.com/watch?v=C3PtAsfWqrM (GTA 3)
https://www.youtube.com/watch?v=ccBQZVpVvAE (Skyrim)
https://www.youtube.com/watch?v=TqPQ4SNmx2c&feature=player_embedded (WoW Kazzak)
https://www.youtube.com/watch?v=CFVCiutbjb4 (WoW PVP)
https://www.youtube.com/watch?v=im3uLo9cK14 (FFVII)
https://www.youtube.com/watch?v=Q1lwD-jFHOE (Super Mario 64)
https://www.youtube.com/watch?v=N_eZoX8nAdg (SSBB Wave Dash)
https://www.youtube.com/watch?v=-tOyBahKkbk (Pokémon #s 1–5)
https://www.youtube.com/watch?v=lc5vDNNCJa4 (Pokemon # 6)

Other images
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http://mapstalgia.tumblr.com - jumping mario animation