www.sonicretro.org

Anchor text: Sonic Retro

Wikipedia: Wikipedia:WikiProject Video games/Reference library

Anchor text: http://www.sonicretro.org/2013/10/sonic-makes-a-return-to-television-with-a-new-cg-cartoon-series-sonic-boom/

Wikipedia: Wikipedia:Suspected copyright violations/2013-10-02

Anchor text: Retro Interviews: The Freedom Planet Invades Florida Supercon Edition

Wikipedia: Freedom Planet