Capitalize N in Native; lower case i – indigenous and lower case a – aboriginal; generally use American Indian or Native rather than Native American. Interchange American Indian with First Nations when referring to Canadian Natives.
Beadwork, basketmaking, sweetgrass and quillwork are one word. Frybread is one word, as is blackjack. Dream catcher is two words, as is pottery making.
The other guidelines are pretty much straightforward. The only one I dispute is writing "dreamcatcher" as "dream catcher." A Google search produces 9,400,000 hits for "dreamcatcher" but only 1,830,000 for "dream catcher" (in quotes). That suggests "dreamcatcher" is the more common and accepted term by 4-1 or 5-1.
In any case, kudos to Indian Country Today for its increased reporting on Indian country. The newspaper used to publish maybe 5-7 articles each week. Now it's more like 15-20 articles per week. This is a huge and welcome amount of coverage for Indians. (You can find all these articles on the ICT website or on PECHANGA.net, of course.)
I'm on the editor's mailing list for writers. He's soliciting writers to do a dozen or two articles per week. If they all make it into print, that'll be impressive.
Below: A dreamcatcher, not a dream catcher.