Ludum Dare is an online accelerated game development event that focuses on regular 48 hour competitions. Think Rails Rumble but for games! It's been around since 2002 but has had a big publicity boost recently due to the participation of Notch, the creator of the mind-bogglingly popular indie game Minecraft.
The next Ludum Dare...

Between August 19—20, 2011, Madison, Wisconsin plays host to thirty-seven speakers and panelists to discuss Ruby, OSS, and community in the form of 


If you fancy a trip to the land of fried confectionary and heart disease, the Scottish Ruby Conference (previously Scotland on Rails) is selling tickets for its third event: 