Social signals according to Searchmetrics are not a ranking factor.
However, their "Search Ranking Factors & Rank Correlations 2015"... which provides webmasters, SEOs and content marketers with the latest insights regarding the most important ranking factors for high-ranking Google.com search results.
They have stated the following...
"The question remains open as to exactly how social media signals such as likes, tweets and +1s boost rankings. Google...

Ecommerce is a huge source of income for most people today. This is a relatively new way of gaining income for people, so it can be a very difficult thing for those who are new to this field. There are so many terms to deal with and a lot of different concepts that you need to become familiar with so that you can adequately track your earnings and figure out ways to optimize your profits. Through enough research and education, you will be able to make a decent profit for your next online marketing...

In this article I am going to teach you how to generate targeted traffic using forums.

Forum marketing can be achieved in five easy to follow steps.

1. Find the right forum for your market
It's really important for you to know where your target market hangs out. Whatever your chosen niche is, there will be a forum. If there isn't you may be in the wrong niche. Why would I say that? Because competition is your friend. It demonstrates a marketplace is healthy...

I get asked all of the time about traffic generation.
Whether it’s someone I have recently met or one of my members or subscribers. By far one of the most popular questions is about traffic.

Usually it goes something like this “Gareth the traffic source I am using doesn't work. It just doesn't convert for my offer, in my niche. Can you teach me another way to drive better quality traffic?”

To which dependent on who is asking will determine my response....

...