1. How much will buying PR links help a website who didn't do SEO or linkexchange at all to get traffic?2. Are those companies reliaible who selling PR links?3. Does anyone know a reliaible company?these companies are most likey not reliable.thats really all i got to say. sorry i dont know more manTry this place. They are very reliable.http://www.text-link-ads.com/Well, Buying PR Links help's many people. The more backlinks you are getting the higher your PR/RankingsIt is very difficult to determine how much any given link, purchased or otherwise, actually helps. I think it has helped me. For the anchor text I used, I moved very quickly from Google page 6 to page 1 (#6 overall).I purchased one PR7 link from TextLinkBrokers, and they have been extremely honest in my dealings. You can view their inventory at http://www.textlinkbrokers.com/inventory.htmlI plan to buy another once I can afford it. There are some really bad link sellers out there though. So, I'd search various SEO forums before I did business with any.yeah some sellers in there look dodgy..!