www.gutenberg.org

To see your duplicate content highlighted on the page, click on a row in the table below: 
Duplicate Content Search title or URL  
  URL Title Match Words Match Percentage Match Pages Page Power ▴help
help/mobile.html Tablets, Phones and eReaders How-To | ... 45 1% 1 91
ebooks/offline_catalogs.html Offline Catalogs | Project Gutenberg 53 5% 2 92
(home page) Free eBooks | Project Gutenberg 109 16% 2 93
browse/scores/top Top 100 | Project Gutenberg 424 11% 14 93