Welcome to Steemit kikiriki. Let me know if you got any questions about Steem or anything related to it! 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. We also have DTube - our very own Youtube, DSound for Soundcloud and Steepshot if you prefer Instagram like experience. I'd also like to mention ChainBB - forums, Busy - Steemit with more modern look and DMania for memes. That's right, you can actually make money of memes now! Welcome to the blockchain