I need to know how much time I should be spending link-building. I run a website that gets a few thousand hits a day from social media. I get little traffic from google. I have found a good way to get a few links (15-25) from high-ranking websites, however, it requires an investment of time on my part.
If I can get 25 links from PR 5 ranked sites or higher, is it worth a week of good work? How about 2-3 days work?