I own a few websites and want to use press releases to drive targeted traffic back to them. I've written a few different press releases that I want to send out for distribution, and I've heard/read about using PR distribution software that will send the PR's out to hundreds if not thousands of distribution sites. First, can this hurt your ranking in search engines w/ all of that duplicate content? Like, will they consider it spam? And second, if you do approve of using this type of software what program is the best?
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