Fivehundred's Gems

#	Total Rank	Daily Rank	Name	Summary
1	45,690	46,763	mail_robber	Simple email testing for Rails
2	88,106	72,931	find_duplicates	adds methods to find duplicate rows to AR models
3	92,464	173,064	acts_as_daterange	adds daterange to AR models
4	111,713	104,632	shabbat	The most Kosher GEM in the web. Extends Date and Time classes to add common jewish meth...