The Michael's of Mexico, Fantasias Miguel, just posted this great instructional video about how to loom knit a shawlette! While the yarn does not match my personal taste, the technique could be applied to any yarn.
This shawl would be gorgeous, for example, in Lion Brand Amazing.
I am glad they posted this, because I have a loom that is made for this specific technique and I was wondering how to use it! :D
Bonus! It's in Spanish (but the visuals are great), so you can either read along, have a Spanish lesson, or just follow what the lady in the video is doing. :D