Online reviews have become one of the most important components in purchasing decisions by consumers in North America. According to a survey conducted by Dimensional Research which included over 1000 participants, 90% of respondents said that positive online reviews influenced their buying decisions and 94% will use a business with at least four stars. Interestingly, negative reviews typically came from online review sites whereas Facebook was the main source of positive reviews. Forrester Research predicts that by 2020, 42% of in-store sales will be from customers who are influenced by web product research.
Secondary (also called “tertiary” or “supporting”) keywords include all other keywords you are targeting and/or incorporating. In some contexts, secondary terms are those you are loosely optimizing for, but they’re just not considered a high priority. In other scenarios, secondary keywords act as the semantic or long-tail support to help you get the most out of your primary keyword targeting.
Its about social engagement these days, I tried on my site and i am gaining good spot in google :), I tried direct, referral and organic traffic. And also if you have a tier 1 links that are pointing to your moneysite, then you should send traffic to that and clicking to your moneysite, that is traffic popularity or engagement. Share your post, share your sites to real people.. its all about engagement
Let's say, for example, you're researching the keyword "how to start a blog" for an article you want to create. "Blog" can mean a blog post or the blog website itself, and what a searcher's intent is behind that keyword will influence the direction of your article. Does the searcher want to learn how to start an individual blog post? Or do they want to know how to actually launch a website domain for the purposes of blogging? If your content strategy is only targeting people interested in the latter, you'll need to make sure of the keyword's intent before committing to it.
While SEO allows you to optimize your website for a greater chance in appearing higher in search results, and online advertising allows you to send promotional content to the target audience of your choosing, SEM combines both benefits as your content is both optimized for higher search rankings and is placed primarily in front of audiences who are most likely to convert when they click on your ads.