What is Link Building ?
Link building can increase the number of high-quality links pointing to a website, in turn increasing the likelihood of the website ranking highly in search engine results. Link building is also a proven marketing tactic for increasing brand awareness.
Links on the Internet form a relationship between pages and sites that are hugely important to both search engines and marketers. Search engines, like Google, use links to crawl the web, discover new pages, calculate the popularity of those pages, and also determine the relevancy of results to a searcher’s query.
A link from any large, respectable site is going to be higher on the quality scale than a link you might get from commenting on a blog. In addition, links from those in your “neighborhood”, sites that are topically relevant to your site, may also count more.
Link text / Link anchor text
The words within a link — the link text or “anchor text” — are seen by search engines as the way one website is describing another
Number of links
Plenty of sites have found that getting a whole lot of links can add up to SEO success. Even more so if you’re getting a lot of links from many different sites. All things being equal, 1000 links from one site will mean far less than 1000 links from 1000 sites.