| 1 | 1,787 | 3,606 | extlib | Support library for Merb |
| 2 | 2,971 | 4,932 | moped | A MongoDB driver for Ruby. |
| 3 | 8,009 | 10,314 | datamapper | Faster, Better, Simpler. |
| 4 | 15,311 | 16,465 | akephalos | Headless Browser for Integration Testing with Capybara |
| 5 | 41,626 | 70,826 | rails_datamapper | Rails Plugin for DataMapper |
| 6 | 53,659 | 44,843 | tiff | Ruby wrapper for libtiff with FFI |
| 7 | 67,259 | 50,548 | mail_builder | MailBuilder is a simple library for building RFC compliant MIME emails. |
| 8 | 68,401 | 169,728 | haml-server | Server for HAML files |
| 9 | 92,733 | 90,780 | testdrive | TestDrive is a simple ruby and jruby compatible automatic test runner. |
| 10 | 121,201 | 122,967 | harbor | Harbor Framework |
| 11 | 129,649 | 122,967 | uninhibited | This rubygem does not have a description or summary. |
| 12 | 132,720 | 122,967 | ttf2eot | Convert TTF fonts to EOT fonts |
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