Help
"I am getting spam from working with rails site about once a week asking me if I am looking for work. I'm not, how do I make it stop?"
Besides the obvious, check the "I don't want email" box, nothing comes to mind.
Interesting things
If you are running your site on Engine Yard and you want your site's "heartbeat" monitored, install the fitter_happier plugin. See EY's notes here.
Be careful when calling #id on an object that's a Fixnum (especially if you think it's something other than a Fixnum, like say a user object). It will return (value * 2) + 1. Most likely this will go away in the next major revision of ruby given the "warning: Object#id will be deprecated; use Object#object_id".
Josh Susser is giving a talk at Ruby Meetup tonight. Topic, Iterations and Blocks.