Get Exceptional is a service similar to Hoptoad: a web service which your application can post exceptions to. Either of these is a big step up from that old standby, exceptionnotifier, which fills up your inbox with exception emails.
Get Exceptional is not quite as stylish as Hoptoad, but it does offer a gem which makes it relatively easy to post exceptions from any Ruby app. Here’s an example I threw together of using Get Exceptional from Sinatra:
You could potentially use this from pure Ruby as well, leaving most of the exception parameters blank.