Here is one of my web log entries, perhaps from my Yakkity Yak page, What's New page, or one of my Astounding Adventures from my Geocaching section:

Learning to GEM-ify
Saturday, 16 January 2010 4:08 PM MST
Yakkity Yak
I finally GEM-ified my implementation of the MikroTik RouterOS API I wrote in Ruby (part of one of the projects at work). This is the first time I've packaged Ruby code as a GEM. It's been educational. I do still have more work to do (especially on the RDoc documents), as well as add a few more features to the library.

The whole thing is online here: http://www.aarongifford.com/computers/mtik/

The documentation starts there too. The RDoc stuff is at: http://www.aarongifford.com/computers/mtik/latest/doc/

I've also put some stuff up on the MikroTik wiki: http://wiki.mikrotik.com/wiki/API_Ruby_class