Hi, do anyone found usefull tool which scan entire web including subpages and suggest frequently used words and phrases?

It would be very usefull to me.

Can be program or online tool.

Thank you!

Not sure if it is still free. It was on a giveaway of the day site a week or so ago. http://www.dupefreepro.com/
It scans the top ten results and lets you know which words occur most often. The button to use is [LSI]

Sure, still free:

Code:

http://www.blackhatworld.com/blackhat-seo/download-requests/31851-dupe-free-pro.html