Seriously take a look at Sentry[1]. It supports just about every major language out there, is open source and used on some very large web properties (disqus, which powers comments for cnn.com amongst others), and is just generally awesome software. If you don't want to set it up yourself, use their hosted version[2].
If you are a .net / C# guy check out their csharp raven client[3]. Raven is the client to sentry which automatically sends all exceptions.
If you are a .net / C# guy check out their csharp raven client[3]. Raven is the client to sentry which automatically sends all exceptions.
[1] https://github.com/getsentry/sentry
[2] https://getsentry.com/welcome
[3] https://github.com/getsentry/raven-csharp