Duplicate Content Searches

I'm creating an Article Spinner that uses sentence boundary detection and parts of speech tagging... long story short, I need a good way to check if finished product is truly unique. I am aware of copyscape.com and literal searches on Google. Are there any other good tools or methods I should consider using in addition. Optimally I don't want to just use one. I want the spinner to test uniqueness against a suite of test methods.

Many thanks in advance!

OK... nevermind... seems all the dupe content services do the same thing...

http://search. yahooapis .com/ NewsSearchService/V1/newsSearch?appid=YahooDemo&output=json&callback=searches[1].yahooResults&query=%22ENCODED_TEXT%22&results=50

http://www. google. com/ search?&q=%22ENCODED_TEXT%22

Substitute ENCODED_TEXT with your encoded test string and count the matches. Obviously 0 means unique as far as they know.

Some of these services have the gall to charge $65 month... there cant be that many suckers out there... If anything could be a new site niche for DP website sales.

Cheers,

copyscape.com seem to do the job

I also need info about this so bump for you