CJaysMusic
NebRanger
I'd assume that basically any third-party plugins that don't use "Sonar-specific" licenses (see: Blue Tubes) would work. After all, if AD2 works in other DAWs I'd guess it's a seperate license that just came as a pack-in with Sonar.
3rd party plugins that are included with SONAR. That is what they are talking about.
This is what I mean; plugins like AD2 or Melodyne that came bundled with Sonar but aren't license-locked TO Sonar will work. Blue Tubes won't as the license was locked to Sonar.