| 1 | 1,729 | 3,828 | extlib | Support library for Merb |
| 2 | 2,913 | 5,103 | moped | A MongoDB driver for Ruby. |
| 3 | 7,876 | 11,012 | datamapper | Faster, Better, Simpler. |
| 4 | 15,090 | 22,546 | akephalos | Headless Browser for Integration Testing with Capybara |
| 5 | 41,520 | 30,841 | rails_datamapper | Rails Plugin for DataMapper |
| 6 | 54,618 | 29,160 | tiff | Ruby wrapper for libtiff with FFI |
| 7 | 66,969 | 46,081 | mail_builder | MailBuilder is a simple library for building RFC compliant MIME emails. |
| 8 | 68,147 | 59,290 | haml-server | Server for HAML files |
| 9 | 92,691 | 59,290 | testdrive | TestDrive is a simple ruby and jruby compatible automatic test runner. |
| 10 | 121,088 | 69,723 | harbor | Harbor Framework |
| 11 | 128,959 | 107,799 | uninhibited | This rubygem does not have a description or summary. |
| 12 | 133,024 | 84,943 | ttf2eot | Convert TTF fonts to EOT fonts |
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