I have a few WhiteHat websites that I am very careful building links to but would also like more to send more traffic to. I keep them very separate from my BlackHat projects for longevity's sake. I feel like there hasn't been much talk recently about Press Releases and their affect (positive or negative) on SEO. My concern is that Google sees the same article on many different websites and doesn't like it. I also know that PRs are fairly commonplace for online marketing. I have simply never tried a proper PR distribution and am eager to hear other people's experiences. I know they are at least great for generating short-term traffic and leads but are there any long-term ramifications to creating so many links with duplicate content? I would be using high-quality PR services only. Thanks for your opinions in advance!