I notice that at some point in the (recent) past, that I've added a few
newrelic.com hosts file entries.

127.0.0.1 beacon-1.newrelic.com
127.0.0.1 newrelic.com

At the time I didn't know what they did - just saw them showing up in my
router's out-bound log.

Today I was going through some .JS files that I'm hosting on my own PC -
running them through an on-line JS code "beutifier" so I can read this
****, and modify it.

There's something called a NREUM cookie that they set. I found
references to this cookie from here:

https://d1ros97qkrwjf5.cloudfront.net/30/eum/rum.js

I have a bunch of directories on my system where I'm simulating various
servers (their directory structures, js files, etc).

If you want a good picture of what New Relic does and what their cookie
does, here it is right from the horses's ass (I mean mouth):

http://www.youtube.com/watch?v=7Mg0UtzYql4

Sorry New Relic - you fail.

Hosts file sez -> 127.0.0.1