Fivehundred's Gems

#	Total Rank	Daily Rank	Name	Summary
1	46,195	35,267	mail_robber	Simple email testing for Rails
2	88,876	103,620	find_duplicates	adds methods to find duplicate rows to AR models
3	93,350	45,821	acts_as_daterange	adds daterange to AR models
4	112,667	103,620	shabbat	The most Kosher GEM in the web. Extends Date and Time classes to add common jewish meth...