I keep most of those source sites in UNTRUSTED status (including some of the big names in search/ads/etc). But I've always had DDG in the TRUSTED category because I had only seen its javascript before on the main DDG website.
(Unfortunately NoScript has a limitation that you can't tell it to "only TRUST javascript from example.com when I'm visiting example.com").
But recently I started noticing some websites pulling javascript from DDG (I don't remember which sites).
So now I was wondering if DDG is getting into the tracking business, since they're now having their javascripts load from third party sites.
Obviously this is anecdotal. But does anyone know if they are indeed beginning to track?