Rosalind - 12:18 pm on Sep 18, 2012 (gmt 0)
In that case you probably need to get a handle on the plagiarism. Get some DMCAs out, lock down your server from scrapers by disallowing cached pages and bad bots. Ban the internet archive bot. The No Archive initiative has some good details explaining why this is essential.
Watermark your images. Write text that only you could have written, and create hard-to-scrape content. You can't do much to prevent mom and pop operations from cutting and pasting by hand, but it might help to reposition or re-emphasise your copyright notice and see if that deters a few more people.
IMO, until you make a good defence against plagiarism re-jigging your content isn't going to help much, because this is just going to happen to you again.