Aug 2006
Wikipedia
A very informative wikipedia entry for Glider Pro.

Includes information about:

1 The game
2 Versions of the game
3 House building
4 Community and future of Glider series
5 Houses
SacredSoftware.net
Sacred Software hosts an archive of Glider PRO houses and information. It is the largest known repository of Glider PRO files on the Internet.
Sacred Software's owner, Alex Diener, no longer has much personal interest in Glider PRO, but he has pledged to continue hosting the file archive, and will still accept new submissions to it. If your house isn't on there, let him know.
John Calhoun's Page
Since Casady & Greene Inc. went bankrupt, the rights to the game Glider have reverted to John Calhoun, the author.
To that end, John released Glider Pro and Glider 4.0 as freeware. They are available for free download on this web site. Casady & Greene was a wonderful company and we are all sorry to see them pass into Macintosh history.

Glider Pro for Mac OS X does not have a house editor (it was never ported to OS X). The Mac OS 9 version is still the only way to create new Glider Pro houses (sorry).

A serial number for Glider Pro is included.
And it is here: GL3-445-557-08100

~ john calhoun ~
Penguin127's GliderPro Club
Penguin127s Glider Pro Club is a Yahoo group for Glider Pro fans.
John Calhoun calls this "the biggest fan forum on the Web."
Slumberland
Slumberland is a GliderPro housing community.
It has a tutorial how to create your own houses and, of course, a house archive.
GliderPro Players World
Glider Pro Players World
Interesting from a historical standpoint, but I think this site is mostly dead.