| 1 | 1,770 | 3,340 | extlib | Support library for Merb |
| 2 | 2,948 | 5,356 | moped | A MongoDB driver for Ruby. |
| 3 | 7,947 | 12,809 | datamapper | Faster, Better, Simpler. |
| 4 | 15,205 | 24,666 | akephalos | Headless Browser for Integration Testing with Capybara |
| 5 | 41,516 | 23,407 | rails_datamapper | Rails Plugin for DataMapper |
| 6 | 54,139 | 19,060 | tiff | Ruby wrapper for libtiff with FFI |
| 7 | 67,018 | 43,419 | mail_builder | MailBuilder is a simple library for building RFC compliant MIME emails. |
| 8 | 68,175 | 43,419 | haml-server | Server for HAML files |
| 9 | 92,604 | 94,537 | testdrive | TestDrive is a simple ruby and jruby compatible automatic test runner. |
| 10 | 120,930 | 57,531 | harbor | Harbor Framework |
| 11 | 129,226 | 94,537 | uninhibited | This rubygem does not have a description or summary. |
| 12 | 132,525 | 94,537 | ttf2eot | Convert TTF fonts to EOT fonts |
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