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Hi, it is like a token and you can exchange it for Bitcoin and then FIAT on the open markets. Although 0.001 STEEM is not very much currently.

Check out https://steemit.com/faq.html and have a look around the site. Keep learning it will click eventually :]

Coin Marketplace

STEEM 0.19
TRX 0.16
JST 0.030
BTC 66050.37
ETH 2629.02
USDT 1.00
SBD 2.68