Screening for plagiarism / duplication

 There's an interesting paper in PLoS One about use of the eTBLAST software to screen for text similarity (and therefore plagiarism and redundancy).  See:

Systematic Characterizations of Text Similarity in Full Text Biomedical Publications Zhaohui Sun, Mounir Errami, Tara Long, Chris Renard, Nishant Choradia, Harold Garner http://dx.plos.org/10.1371/journal.pone.0012704