I'm really inspired to work on this project since I've been working on SEO-related assignment lately. My experience is wide because I once worked as a one-way linker, and proofreader of an SEO company. I cannot squeal the name of the company though, for contractual reasons. The campaign topics or niche I've worked on so far include used cars for sale, mortgage, wigs for sale, dentist campaigns, software products, rugby ticket sales and many more.
I know that clients prefer ROI or return of investment in every campaign, that's why my focus on the project include getting better ranking in SERPS and also pre-sell to potential customers for conversion purposes. so, here are the methods that I'm going to use;
Link dropping: I'll post relevant and quality comments in blog posts with PR 1 and above. Each comment contains 2 target urls in HTML form in at least 2 paragraphs. The bloggers must live within countries of your target clients, hence targeting potential sales. I'll also be mindful of competitors to avoid being damaged. Since there are 8 keywords, I'll link drop for each keyword ten (10) in number, so that would be 80 links in all in one-month duration. Meaning, I'll finish the link dropping within a week, but let's wait within a month for the checking of your in-house SEO. I'll make a report in excel form, by the way.