Welcome to Steemit thesethree. The official FAQ can be found here and has A LOT of information https://steemit.com/faq.html - Also remember, Steemit is just ONE of the sites built that uses Steem the blockchain. You should also check out DTube and DSound for starters and if you're a gamer, Steem Monsters! There are many other cool apps but I can't list them all here, there's just too many! But I'd also like to mention Steempeak, it's a better blogging platform that has a lot of cool features. Welcome to the blockchain! :) Oh, and if you're interested in creating your own tokens or smart contracts, check Steem engine!
Oh my gosh, so many things! I’ll have to read some more of the FAQs! Thanks for linking it here for me