http://www.evidon.com/

Be a web detective.

Ghostery is your window into the invisible web – tags, web bugs, pixels and beacons that are included on web pages in order to get an idea of your online behavior.

Ghostery tracks over 1,200 trackers and gives you a roll-call of the ad networks, behavioral data providers, web publishers, and other companies interested in your activity.

We ran a few tests and this is what we found: most files arrive bit-for-bit identical compared to the files that were sent. But sure enough, MP3 files were downgraded considerably. The 5.12 MB stereo 228 kbps file I bought from Amazon was downgraded to 1.4 MB mono 62.4 kbps on receipt after transfer through Messages.

Why is this happening? We're honestly not sure and I'd rather not speculate. We've reached out to Apple for comment but do not expect a reply.