Apart from technical information here in the manual and on the Knowledge Base, GameMaker also has a number of social media and support and information pages where you can find the latest news, offers and other information regarding GameMaker. You can find links to these sites below:
You can also see games that have been made using GameMaker on the GameMaker Showcase (as well as submit your own!) from the following link:
Finally, for additional help with programming and using GameMaker, you can join the official forums or check out the official Facebook community from the following links: