a little more clarification:
snuff is a powder, pulverized tobacco, that you sniff into your nose.
swedish snus comes in tiny pouches that you put under your upper lip. snus is supposed to be spit-less, so it's perfectly fine to swallow the juices, but some people prefer to still spit.
there are tons of flavors of both to explore, check out the reviews on this subforum, as well as other snuff/snus websites!