Navigator -- If I'm not careful, I'm going to be cruising Livemaster and saving tutorials until dawn. Sheesh, you're a bad influence, just BAD I tell ya.
I've seen a few yurt felt-making videos, but not all the ones you shared. I love the ones where they show a horse or a camel pulling the bundled wool around the plain. I have limited bandwidth (satellite internet) so I don't dare watch too many videos, but I'll try to sneak a peek at a few from your list that I've not seen.
Awhile back I stumbled across a video or article describing a distinctive felted coat traditionally worn by a certain group of Eastern European men. The shoulders of the coat are unusual in that shoulder flares out into an exaggerated point a little like some fantasy costumes. I can't find the article or video. Grrr. I'll keep looking...
MMI -- the baby boots with curled toes and matching hat ... yeah, super adorable stuff!
Scooter -- Felting is a lot like soap. You can just "do it" without thinking too much and simply enjoy the activity and let your creative muse run free. Or you can also get into the technology of how it works if you want. As an engineer, learning about the technology is reassuring, but I appreciate how felting also encourages me to be more artsy fartsy, because in felting (as in soaping) you can't entirely control the outcome, no matter how hard you try. It's a fascinating hobby that pairs well with soap making, IMO.