The current changelog lists a TODO for adding useful links about achievement design. Here are a couple of useful writeups and articles that I've come across inty my research:
http://gamification-research.org/wp-content/uploads/2011/04/03-Antin-Chu...
http://uxdesign.smashingmagazine.com/2009/11/17/designing-social-interfa...
http://ui-patterns.com/patterns/CollectibleAchievements
http://www.designingsocialinterfaces.com/patterns/Collectible_Achievements
Comments
Comment #1
morbus iffThanks!
If you have any questions or implementation snafus, don't hesitate to bug me in IRC.
Comment #2
morbus iffFWIW, these are some that I had in mind:
http://www.gamasutra.com/blogs/GregMcClanahan/20091202/3709/Achievement_...
http://gamingphilosopher.blogspot.com/2011/08/designing-achievements.html
Which come from the gamer-side of things (vs. the social badges approach).