Here’s a Safari extension that, you guessed it, cleans up crufty URLs:
Things being removed include:
- Google Analytics parameters (utm_source=, utm_medium, etc.)
- Youtube related parameters (feature=)
- Partner tracking stuff for NYTimes, Macword, CNN, CBC Canada and The Star
It removes them just one second after the page has been loaded, so those sites that insert all that cruft for analytics purposes still get the data. (Via Michael Schechter.)
Related: How to disable FeedBurner from uglifying your clean URLs.