Designing and Teaching for Impact in Online Courses
This course could be a more visually effective, but on balance it's a decent example of ID principles like chunking content, checking for knowledge, and accessibility. BONUS: Lots of good ID info in the course itself.
The X factor: The Secret to Better Content Marketing
These slides "break" some of the rules I generally recommend. For example, there's a lot of text on each slide, multiple (and fancy) font types, and patterned backgrounds. But it more or less works. Proof that there's an exception to every rule...
As a website, this is a little annoying (you have to click on all the items before you can proceed). But there are some good ideas for learning design.
This is an OER course on instruction design that, appropriately, is a reasonably good example of instructional design. I say reasonably because it could be better in terms of visual design and wayfinding.
A ‘quick-start’ guide for embedding accessibility and inclusive design practices into your team’s workflow. The site is specifically for people working on government websites, but they're good standards for all websites (even if you're not "legally" required to be accessible... you really ought to be).