scalable link building

Hello, I own a work from home website that sells a Phone sex eBook and offers a 1-on-1 consultation with me as an upsell. For the last year, Ive averaged about $200-$500 a month selling both. My problem is scaling. 75% of my traffic is from Facebook work from home groups 10% of my traffic...

​A stranger is being shown around a village that he has just become part of. He is shown a well and his guide says, "On any day except Saturday, you can shout any question down that well and you'll be told the answer." The man seems pretty impressed, and so he shouts down: ?Why not on...

Anyone try to scale broken link building? I figured I could pull sites and scrape for broken links. But didn't know how feasible this was in terms of a large scale. Anyone try it?