Is Udemy training worth paying for? You can learn much of the same material on Trailhead, in many of the fantastic blogs, online forums, and elsewhere, but it requires some self-discipline. The Udemy training is solid and useful, and I’ve used their platform for several courses. One of the best courses is the Admin Certification prep by Mike Wheeler andAaron Wheeler. If you’re interested in that, take a look at Mike Wheeler Media (new-ish site) — looks like he’s created his own learning platform, and I know a lot of Mike Wheeler fans! Another great (paid) resource is PluralSight, featuring courses by renown teachers like Dan Appleman, Don Robins, David Liu, and Chuck Liddell.