Backlinks are basically Authoritative linking. Which means someone else says about your site that it is in an indication of a particular keyword or you have authority in a particular market is indicating that their readers can go and find more helpful information from certain places on the web and they do that by creating these authoritative links which also called backlinks. The more of high quality, authoritative links that you have, Google considers this as you are being incredible in the market. Your website can be authoritative by having other website owners to link to your website, Then Search Engine algorithm will consider your site and you will get higher boost to your SEO and your site will likely get higher ranking and the more of this authoritative link. Blog Commenting is a great way to get backlinks to your website. Step 1. Find relevant and high traffic blog in your niche. Step 2. Actually read the post, what all it’s about. Step 3. Just leave relevant comment to the topic, then simply place your link in the comment.
Cost per mille, often abbreviated to CPM, means that advertisers pay for every thousand displays of their message to potential customers (mille is the Latin word for thousand). In the online context, ad displays are usually called "impressions." Definitions of an "impression" vary among publishers, and some impressions may not be charged because they don't represent a new exposure to an actual customer. Advertisers can use technologies such as web bugs to verify if an impression is actually delivered.:59
How do I choose keywords for SEO
Another disadvantage is that even an individual or small group of people can harm image of an established brand. For instance Dopplegnager is a term that is used to disapprove an image about a certain brand that is spread by anti-brand activists, bloggers, and opinion leaders. The word Doppelganger is a combination of two German words Doppel (double) and Ganger (walker), thus it means double walker or as in English it is said alter ego. Generally brand creates images for itself to emotionally appeal to their customers. However some would disagree with this image and make alterations to this image and present in funny or cynical way, hence distorting the brand image, hence creating a Doppelganger image, blog or content (Rindfleisch, 2016).