What do you want to know exactly?
Voting itself works similar to other social networks. You click on the blue button (arrow) below a post (article or comment) to "upvote" it. According to your Voting Power (which is defined by the amount of Steem Power you have in your Wallet) the upvote will have a related weight, and part of steemit's reward pool will be allocated on this specific account. Imagine the reward pool like a swimming pool full of coins that is constantly filled. The coins inside the pool are distributed amoung the active users on the platform. They get rewarded for their social interactions. The more attention your actions receive, the better your chances that people "like" (upvote) them. So if you publish interesting, engaging stuff, your chances to earn money will increase.

Was that helpful for a start?

First little recommendation regarding your blog (if you allow):
You shouldn't use images that are not yours (Danny Devito), unless you indicate the regarding source. However, it's always recommendable to use your own content, especially if you're doing an introduction post. If you want us to analyze your intro post in detail, just let us know and we'll do it :-)

Steem on!