Icons by Fam Fam Fam (http://www.famfamfam.com/lab/icons/silk/)
Silk companion icon set #1 - "More Silk!" (http://www.damieng.com/icons/silkcompanion)
Fugue Icons (http://p.yusukekamiyamane.com/)
Facebook icon by Komodomedia (http://www.komodomedia.com/)
Sans Nouveauxfont by Elvis Mehmedović (http://emehmedovic.com/sans_nouveaux)
Olney (http://www.philatype.com/)
Audio by Suad Čokljat (http://www.indigo-audio.com/)
Apache Flex (http://flex.apache.org/)
Penner Easing equations
JSON FX (http://www.jsonfx.net/)

Audio: 

- original audio by Suad Cokljat (http://www.indigo-audio.com/)

Icons:

- Fam Fam Fam (http://www.famfamfam.com/lab/icons/silk/)
- Silk companion icon set #1 - "More Silk!" (http://www.damieng.com/icons/silkcompanion)
- Fugue Icons (http://p.yusukekamiyamane.com/)
- Facebook icon by Komodomedia (http://www.komodomedia.com/)
- Smooth Classic Cursor Set and Blue-Glass for Vista Cursor Set by Vlasta (http://www.rw-designer.com/user/1)
- hydroxygen iconset - developed by deviantdark [www.deviantdark.com]

Fonts:

- Sans Nouveaux by Elvis Mehmedovic (http://emehmedovic.com/sans_nouveaux)
- Olney (http://www.philatype.com/)

Libraries:

- JsonFx.NET (http://www.jsonfx.net/)
- Robert Penner Easing equations (http://www.robertpenner.com/easing/)
- iTween (http://itween.pixelplacement.com/)