Fivehundred's Gems

#	Total Rank	Daily Rank	Name	Summary
1	45,128	68,272	mail_robber	Simple email testing for Rails
2	86,982	162,660	find_duplicates	adds methods to find duplicate rows to AR models
3	91,218	100,176	acts_as_daterange	adds daterange to AR models
4	110,371	162,660	shabbat	The most Kosher GEM in the web. Extends Date and Time classes to add common jewish meth...