I've already written about some of the ways you can protect your contents on this post back in 2009 about duplicate contents.
There is a new one also out there called "EmbedAnything". Personally, I would not use this, and not having used it, I don't really have any recommendations for it.
My personal opinion is that Embed Anything might be fine for those who wish to share their contents, but it not an option for those who do not. I also don't believe it would provide much in the way of actual protection.
Anyone can copy from your website, even if you disabled the right click function (which is totally annoying to most visitors as the right click context menu contains many functions that people use while viewing a website, not just the copy function) people can still copy your content. A couple of ways. Firstly, Firefox will show a notice that the right-click function has been disabled on that website, however, Firefox will still let you highlight and copy the text, rendering the "no right click" codes entirely useless.
And if someone really wants to copy your text, they can simply view the source code for your page, and highlight the text block they want, then copy it. Disabling the right-click functionality doesn't work in source code view, so pretty much any browser can still allow people to copy your work.
What's left then?
Besides the free registry places I listed in my old article (which still apply), you need to file DMCA notices to get your copied works removed from the sites that copied them. Keep in mind though - if you had previously given someone approval to re-post your content, you should not file a DMCA notice. You've given them permission and that means it is not a DMCA issue - they posted with your authorization.
The other thing you need to be clear about when filing a DMCA claim is that you actually own the content. If you've copied a bunch of images off someone else's website...you don't own those, and you may not file a DMCA claim for things you don't own.
Lastly, in filing a DMCA claim, you need to file it with the correct agency. If the person who copied your content has a website and paid webhosting, you will want to find out who their webhost is (do a "whois" search for that) because that's who you want to file the claim with. If they are also using Adsense, you can file a DMCA claim with Adsense. If they are using Blogger, you'll need to file a DMCA claim with Blogger.
You need to complete the forms fully and correctly, and from some of the DMCA notices I've seen on Chilling Effects...some people don't understand how to fill out the forms. Below are copies of the DMCA notices for Adsense and Blogger, with instructions on how to complete them correctly (click the image to get a larger view).
Please remember - do not complete a form unless you are the original owner of the contents.