Links so important ?

Why Are Links So Important For Your Online Success?
For two main reasons:
1) Links make your website get indexed by search engines so they begin ranking your pages for target keywords. The higher rank in search engines you have, the more visitors (and sales) you’ll get.

2) Search engines use links to determine how relevant your web page is to search terms. By building links from relevant sites, you ensure that your web page gets indexed and ranked by search engines accordingly.