http://www.itsadansworld.net/2011/06/comics-that-made-me-fan-optimus-prime.html
http://bamsmackpow.com/2014/06/27/brief-history-transformers-comics/
http://www.camphortree.net/tf/links/
http://tvtropes.org/pmwiki/pmwiki.php/NightmareFuel/TheTransformersMoreThanMeetsTheEye
http://leesullivanart.co.uk/LEE/transformers.htm