Fivehundred's Gems

#	Total Rank	Daily Rank	Name	Summary
1	47,576	32,009	mail_robber	Simple email testing for Rails
2	90,690	57,156	find_duplicates	adds methods to find duplicate rows to AR models
3	95,241	130,811	acts_as_daterange	adds daterange to AR models
4	114,933	130,811	shabbat	The most Kosher GEM in the web. Extends Date and Time classes to add common jewish meth...