| 1 | 1,840 | 4,621 | extlib | Support library for Merb |
| 2 | 3,034 | 6,027 | moped | A MongoDB driver for Ruby. |
| 3 | 8,157 | 6,443 | datamapper | Faster, Better, Simpler. |
| 4 | 15,690 | 54,325 | akephalos | Headless Browser for Integration Testing with Capybara |
| 5 | 42,070 | 31,682 | rails_datamapper | Rails Plugin for DataMapper |
| 6 | 54,185 | 23,228 | tiff | Ruby wrapper for libtiff with FFI |
| 7 | 68,003 | 36,779 | mail_builder | MailBuilder is a simple library for building RFC compliant MIME emails. |
| 8 | 69,082 | 40,512 | haml-server | Server for HAML files |
| 9 | 93,401 | 46,026 | testdrive | TestDrive is a simple ruby and jruby compatible automatic test runner. |
| 10 | 121,829 | 54,325 | harbor | Harbor Framework |
| 11 | 130,742 | 103,058 | uninhibited | This rubygem does not have a description or summary. |
| 12 | 133,340 | 103,058 | ttf2eot | Convert TTF fonts to EOT fonts |
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