Can Any Inbound Linking Hurt My Ranking?
The answer is simple – inbound linking cannot hurt your search ranking. How is this known for certain? Well, for one, if inbound were to hurt your rank, your competitors would continually link to your site from link farms.
Is Search Engine Submission Necessary?
The simple answer is no – search engine submission isn’t necessary. The majority of search engines nowadays (most notably Google) crawl and index pages by following links.