| 1 | 1,835 | 4,529 | extlib | Support library for Merb |
| 2 | 3,025 | 5,176 | moped | A MongoDB driver for Ruby. |
| 3 | 8,173 | 6,075 | datamapper | Faster, Better, Simpler. |
| 4 | 15,652 | 19,880 | akephalos | Headless Browser for Integration Testing with Capybara |
| 5 | 42,030 | 20,993 | rails_datamapper | Rails Plugin for DataMapper |
| 6 | 54,193 | 32,898 | tiff | Ruby wrapper for libtiff with FFI |
| 7 | 67,955 | 71,816 | mail_builder | MailBuilder is a simple library for building RFC compliant MIME emails. |
| 8 | 69,025 | 37,006 | haml-server | Server for HAML files |
| 9 | 93,357 | 42,965 | testdrive | TestDrive is a simple ruby and jruby compatible automatic test runner. |
| 10 | 121,783 | 52,349 | harbor | Harbor Framework |
| 11 | 130,620 | 110,042 | uninhibited | This rubygem does not have a description or summary. |
| 12 | 133,355 | 52,349 | ttf2eot | Convert TTF fonts to EOT fonts |
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