About Free Rider HD
Found at the very bottom of the sidebar of the game. It is a basic history of the Free Rider series, how Free Rider 1 & 2 was made by Pete and One More Level and Free Rider HD was made by Kano and One More Level. This About page does not go over Free Rider 3 (as it was a massive flop) but decides to discuss unauthorized copies like Canvas Rider and Draw Rider. It also mentions Free Rider Jumps and Free Rider in Education.
About
One of the pages accessible on the forum's tab at the top of the forums. Likely created before the game's official release (indicated by a FRHD logo with "Beta" on it), it briefly describes what FRHD has to offer and link to the game.
Free Rider HD Mobile
Almost acts as a sitemap for the game yet completely hidden on FRHD (link can be found elsewhere). It contains a trailer for FRHD, details about FRHD Mobile, and links to other games and the forums.
Free Rider in Education
A weird one, is also found at the very bottom of the sidebar. It goes over how teachers can use Free Rider HD in classrooms over a range of devices. Quoting "Teachers have found that creating tracks has a strong link to programming logic, develops persistence, and provides a fun environment to put basic science principles to use." Why does this exist?
Check this out