I've heard that text links and backlinks are good way to increase PR. I'm wondering type of campaign is required to see a significance increase in rank. I purchased 25 backlinks on PR3 sites, but still see no results after 2 weeks. Do you I need to purchase more?.... eg: 50 links/week
PR3? They're not powerful enough. And yes, backlinks are essential in increasing traffic,rankings and your own site's PR. Stop wasting your time buying low PR backlinks. Check my sig. You've gotta be aggressive in this competitive world of Google. =)