Update the blog’s publication date so that it shows up as a new post at the top of your blog, but add an editorial note to the content along the lines of “This post was originally published in [Month, Year] and has been updated for freshness, accuracy, and comprehensiveness.” This will help build trust with your readers by showing them that the content is indeed up to date.
Google claims their users click (organic) search results more often than ads, essentially rebutting the research cited above. A 2012 Google study found that 81% of ad impressions and 66% of ad clicks happen when there is no associated organic search result on the first page. Research has shown that searchers may have a bias against ads, unless the ads are relevant to the searcher's need or intent 
You’re not going to like this answer. But wouldn’t it be so simple if we would tell you to do one or the other and get stellar results? The truth is, an effective marketing campaign should include a bit of both strategies. For the short-term, a paid search campaign can give your business a quick boost, helping you gain exposure to customers searching for the relevant keywords in your campaign; however, sometimes consumers don’t trust—or even look at—paid ads. Using organic search methods, which consumers tend to see as trustworthy, will help drive traffic and increase revenue over the long haul, and solidify your position as a leader and authority in your niche.
Of course, you can buy traffic but if you won't build up organic traffic sources over time, your business will become dependent on the amount of budget you spend on advertising. And advertising costs doesn't stay the same. Most of the time if it gets more advertisers, the costs are going up. And suddenly your profit can disappear and ROI can become negative.
From this aspect, long copy is more useful than short content. Research suggests a content copy of 2000-2500 is ideal for a higher rank in search engines. Long material allows you to insert more keywords (including long-tail keywords), multiplies the dwell time, and also gives an opportunity to add outbound links. Resultantly, you’ll be able to lift conversion rates.
This topic seems actually quite controversial. Google answered the question by what could be taken as a denial. But their answer was kind of open to interpretations. And on the other hand, there are studies (one of them from Moz) that showed linking out has an impact. So, how can you be so assertive? Is it something that comes out from your own experiments?
Amber Kemmis is the VP of Client Services at SmartBug Media. Having a psychology background in the marketing world has its perks, especially with inbound marketing. My past studies in human behavior and psychology have led me to strongly believe that traditional ad marketing only turns prospects away, and advertising spend never puts the right message in front of the right person at the right time. Thus, resulting in wasted marketing efforts and investment. I'm determined to help each and every one of our clients attract and retain new customers in a delightful and helpful way that leads to sustainable revenue growth. Read more articles by Amber Kemmis.
Another term used interchangeably with non-organic SEO is Artificial SEO – which may or may not already tip you off as to why it is considered less appealing and thereby less effective for individuals and businesses that are trying to run a reputable website. While it often yields quicker results – a “quick fix” – in bumping up a site’s initial ranking, the effects are often not as effective in the long run in comparison to the more organic practices.