I'm looking for a tool to help with crowdsourcing the translations for a web site.
Some generous translators have volunteered to help so I want to provide them with a tool to use that will make their job as easy as possible. Ideally the tool/app will be free or have only a small charge.
Ideally I'd like a translation system that makes it easy to export to YAML format or any other format (the web site is built on Ruby on Rails).
If you answer please state whether you've had experience of the tool you're suggesting or not.
Thanks in advance, Eliot