| 1 | 1,857 | 4,871 | extlib | Support library for Merb |
| 2 | 3,053 | 4,262 | moped | A MongoDB driver for Ruby. |
| 3 | 8,177 | 10,291 | datamapper | Faster, Better, Simpler. |
| 4 | 15,792 | 14,341 | akephalos | Headless Browser for Integration Testing with Capybara |
| 5 | 42,275 | 29,698 | rails_datamapper | Rails Plugin for DataMapper |
| 6 | 54,454 | 95,796 | tiff | Ruby wrapper for libtiff with FFI |
| 7 | 68,361 | 68,245 | mail_builder | MailBuilder is a simple library for building RFC compliant MIME emails. |
| 8 | 69,423 | 39,202 | haml-server | Server for HAML files |
| 9 | 93,822 | 95,796 | testdrive | TestDrive is a simple ruby and jruby compatible automatic test runner. |
| 10 | 122,274 | 53,489 | harbor | Harbor Framework |
| 11 | 131,266 | 95,796 | uninhibited | This rubygem does not have a description or summary. |
| 12 | 133,926 | 153,367 | ttf2eot | Convert TTF fonts to EOT fonts |
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