Link Building
The number of external hyperlinks to a Web site is an important factor in a site's findability in search engines. Activities aimed at increasing the number of backlinks to one's websites are called link building.
New backlinks not only improve search engine rankings(search engine optimization), these links can of course generate visitors themselves. Effective link building focuses on content-relevant websites. Links from sites that themselves have a high link popularity (aka PageRank) carry the most weight for search engines like Google.
An easy way to get more links is to exchange links. However, these reciprocal links are less valued by search engines than quality, unique links.
