Duplicate Content Checking Tool?

[elvirs]

Hi all :)
Now I found a new source of articles which I think have never been published anywhere else. And I would appreciate if you guys tell me what tool you use for checking if the article is dupe.
I searched for such tool but none of those had direct download links or were useless. Do you guys know anything that I could copy some part of text into and check if that peace of text is published anywhere else?
thank you

[itliberty]

copyscape.com

[Annea]

Many people use copyscape for checking. copyscape.com
Some also type some of the text (couple of sentences at a time, I've heard) into a search window (google, yahoo, whatever) and see if it shows up online in the search engine listings. I'm not certain, but I think if you do it that way you need to put quotes around it.

[snarke]

Dupecop will also check for duplicate content--but I think that tool might be more for rewriters.

[RenaissanceMan]

Copyscape is definately the best hands down.

[xLucyx]

Yes i suggest Copyscape.

[elvirs]

thank you guys, +rep added to everyone:)

[TMG Enterprises]

Copyscape is the best, of course, but I also like articlechecker.com to double check for dupe content. Depending on what I need the content for, sometimes I'll run it through both services.

[ProjectY]

I think copyscape is the best tool to check for content. In fact, Copyscape recently even improved its bot to look for duplicate content that even changing and adding words to it won't even escape the "lie detector" bots by Copyscape.

[jpservicez]

I agree copyscape is the best.

[iplunge]

You can use Google. Copy the first paragraph and paste it on the search box. You'll definitely get hits if there's an article with the exact string of words.

Copyscape is great, but it's not free. Besides, Copyscape uses Google's search algorithms, so why not use Google and search duplicate content for free?

[MovieWizhard]

Well I mostly use google, I put what I want to search for between two " " and this should show me if on internet an article with same words as i suggested between " " is found. I don't like too much copyscape because you must enter there an URL... not just the text you wish to check

[Grant Media]

As I indicated in my other thread, I would be careful trusting copyscape as the 100% authority. From personal experience, they miss a lot.