| 1 | 1,711 | 3,423 | extlib | Support library for Merb |
| 2 | 2,872 | 5,463 | moped | A MongoDB driver for Ruby. |
| 3 | 7,779 | 11,612 | datamapper | Faster, Better, Simpler. |
| 4 | 14,948 | 23,501 | akephalos | Headless Browser for Integration Testing with Capybara |
| 5 | 41,490 | 52,160 | rails_datamapper | Rails Plugin for DataMapper |
| 6 | 55,794 | 29,421 | tiff | Ruby wrapper for libtiff with FFI |
| 7 | 66,665 | 104,140 | mail_builder | MailBuilder is a simple library for building RFC compliant MIME emails. |
| 8 | 68,001 | 63,556 | haml-server | Server for HAML files |
| 9 | 92,587 | 104,140 | testdrive | TestDrive is a simple ruby and jruby compatible automatic test runner. |
| 10 | 121,115 | 104,140 | harbor | Harbor Framework |
| 11 | 128,438 | 128,321 | uninhibited | This rubygem does not have a description or summary. |
| 12 | 133,733 | 115,482 | ttf2eot | Convert TTF fonts to EOT fonts |
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