As a newbie, it's somewhat difficult to understand the whole setup of steemit. Yes, I am still a newbie here but I have gone through some of the most useful Steemit posts for newcomers. These posts helped me to have some solid understanding about Steemit.
I hope these posts will be useful for all the other new joinees too.
STEEM FOR NOOBS by 
https://steemit.com/steemhelp/@aem/steem-for-noobs
FORMAT YOUR STEEMIT ARTICLES AND GAIN POWER by cryptogee
https://steemit.com/steemit/@cryptogee/format-your-steemit-articles-and-gain-steem-power
MY 7 SECRETS TO EARNING BIG AS A STEEMIT NEWBIE by 
https://steemit.com/steem/@trevonjb/my-7-secrets-to-earning-big-as-a-steemit-newbie
NO UPVOTES? NO PROBLEM - YOU WILL BE KING MAKERS by 
https://steemit.com/steemit/@nanzo-scoop/no-upvotes-no-problem-you-will-be-king-makers
I interviewed some of the top steemians about various things that new users should and shouldn't do and here are the responses by 
https://steemit.com/steemit/@rahul.stan/i-interviewed-some-of-the-top-steemians-about-various-things-that-new-users-should-and-shouldn-t-do-and-here-are-the-responses
Voting Cheat Sheet: How to Follow Steemit’s All Star Posters by 
https://steemit.com/steemhelp/@steemship/voting-cheat-sheet-how-to-follow-steemits-all-star-posters
How to Maximize Curation Rewards by 
https://steemit.com/steem/@dantheman/how-to-maximize-curation-rewards
What Makes A Successful Story: The FIVE Winning Ingredients For A Highly-Rewarded Steemit Post by 
https://steemit.com/steemit/@rok-sivante/what-makes-a-story-successful-the-five-winning-ingredients-for-a-highly-rewarded-steemit-post
A Few Tips On How To Really Love This Place by 
https://steemit.com/steemit/@winstonwolfe/a-few-tips-on-how-to-really-love-this-place
As I said earlier, I am a newbie here, so chances are high that I missed some important posts. Please do mention those posts in the comment and I will add them to this list. Thank you!
