If I had to guess, I think Rack::Cache is very popular - http://tomayko.com/src/...

		petercooper on Oct 14, 2009 \| parent \| context \| favorite \| on: Rack Middlewares To Turbocharge Your Ruby Webapps If I had to guess, I think Rack::Cache is very popular - http://tomayko.com/src/rack-cache/ - and not so gimmicky :)