Some questions before I get started

Hello everyone. I have a few questions that hopefully ya'll can help me with. My idea for a blog will involve content that would be subject to people stealing and such, so my first question is about copyright. How do you protect your postings and content on your blog? do you have to copyright each post, or is there a way to copyright all content on your blog? does getting all rights reserved for your blog take care of this? I want to make sure that once I post something, someone cant come along and steal it and claim it as their own.

Also, and I dont want to sound like some jerk that is certain the blog will take off and become some massive success. However, that is always the goal. So, is it safe to host with a site like wordpress, or something of the sort, in the event that the blog becomes very popular? Would I own the rights to it? Or would I have to host the blog myself to reap all the benefits that a successful blog might offer? I keep reading about the upside to hosting your own blog, how you have more control and what not. Is this just in reference to templates and stuff? I'm not so much concerned about the appearance as I am the content.

Some help on these questions will be greatly appreciated.

First once is on the web it's gone, there will be allway the chances that somebody will copy your content. Before posting make sure that you own the copyrights and that by law you can claim ownership of your content.

You must state on your blog/website who own the copyright of the entire site, what can be copyed, printed, reproduced, and all that things.

Go to wordpress self hosted (you own your site/blog, not blogger or wordpress)