The User-Friendly Guide to Steemit 2.0 - easy to use, updated with ...

Here's a FAQ page (just updated) to help Steemit newbies get up to speed more quickly. Most of these pages are very helpful posts written by other Steemians, and there are a number of new links (marked NEW) in this version.

1. User statistics. Just put in your name/@name (external sites using the blockchain):

Steemdb (stats)
Steemd (stats)
Steemstats
NEWSteemtools - dozens of Steemit-related apps.
NEW Steem.supply - stats on possible payouts to your account.
NEW Steemnow - more interesting account stats.
NEW Steemwhales - various stats including user rankings. H/t to Hive account@cryptowallet.
SteemDollar: your vote's worth - find out how much your vote is worth, based on steem power. H/t to Hive account@rymlen.
NEWSteemvp - keep track of who upvotes you the most
Steemitboard - Shows your awards - by Hive account@steemitboard.

2. Steemit trending topics. The tags that are most popular/have some of the highest payouts.

3. Your wallet. Steem, Steem Dollars, and Steem Power (the first post/video are from months ago, so some of the information may have changed, but they are still a very helpful introduction):

Also:

4. Account Keys/Passwords and Security.

A Quick Guide To How Keys and Passwords Work on Steem and Steemit - by Hive account@thecryptofiend
A User's Guide to the Different Steem Keys or Passwords - by Hive account@pfunk.
Everything you need to know about Steemit's Permission Keys - Explains why you should use your Posting or Active keys instead of your Owner key most of the time. By Hive account@steemitguide

And note a security flaw was recently found:

We just hacked 11 accounts on Steemit! ~$21 749 in STEEM and SBD is under our control. But we are good guys So... - by Hive account@noisy

5. Mentions:

NEW How to Find Posts that Mention You (with AskSteem) - by Hive account@thekyle.

6. Gaining/keeping followers:

7. Posting:

NEW PLAGIARISM | Some Tips And Advice On How To Stop It From Happening On Steemit - Hive account@fortified.
NEW Top 4 Websites To Get Copyright Free Images For Your Steem it Use -by Hive account@libert
NEW Pixabay photos - "Free images and videos you can use anywhere"
NEW Photographers: Get $3 SBD if you sign up for Steem StockPhotos - by Hive account@uruiamme.
NEW How to align and float images in Steemit by Hive account@bettermankind. (This instruction actually didn't quite work for me as it apparently does for others, but modifying it did. Here's the code I've been using:

8. Voting Power:

What's "Voting Power" and Why You Shouldn't Vote TOO MUCH... - by Hive account@msg768.

Note: The article above may not be entirely accurate because there was a recent change in the site called Hard Fork 19, which affected voting power. It has increased it for new users. At the moment I haven't been able to locate a current article that completely covers this topic for new users.

9. Levels/Vests and Reputation: