"A blockchain is a growing list of records, called blocks, that are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data"

^source

It was developed by @steemchiller. The main purpose of this web app was to facilitate the proper management of a user account. It also helps in tracking all your activity on steemit.

To have access to your account via steemworld.org, you are required to login using your steem user name and your posting or active key. The sign in button can be found at the top right hand corner of the website.

When you are logged in successfully, and to prove that you are in your account, your account name is displayed at the top right corner near the sign out button.

After clicking to the dashboard, I found the following navigation taps:

I am gonna give an overview of all the taps.
The first tap displays my account name, feed, communities, and wallet. If any of the this button is clicked, i an been redirected my account details of the taps and before each tap, we have an arrow button which displays full information about a particular tap.

• Stats

The major stats which is displayed here are related to your account is steem power, vote amount, resource credits, reputation, followers, post and vote counts and rewads summary.

• Balances

  
  It displays account value in both USD and EUR. The different balances including Reward balance, account balance, savings balance, vesting balance, and so on. It also allows me to transfer in either steem or SBD to other users or to exchanges.

• Account Details

  
  Account details shows detail information about account, profile, authorities, resource credits and witness votes.

• Delegations

  
  This shows both outgoing and incoming delegations

• Followers

  
  Displays details about my followers and comes with a search dialogue box to find followers easily.

• Mentions

  
  This provides to see who tagged me in their posts and comments.

• Orders

  
  I can buy or sell steem. Ongoing orders will be shown within the open orders section. Conversions and withdrawals will also be shown in the respective sections.

• Account Operations

  
  shows activity related to your account like all vote post, comments, author rewards etc and the day each activity was carried out.

• Coming Rewards

  
  A list of incoming author rewards and Curation rewards. They are rounded up and valued in USD.

• Posts feature

  
  This shows the latest posts which is less than 7 days payout period.
  

To the attention of @cryptokannon