The simple answer is no, a search engine submission isn’t necessary. The majority of search engines, notably Google, crawl and index pages by following links. By that logic, a single inbound link from any previously indexed page will identify your page to the engine.
What’s The Deal With Paid Search Submissions?
Many SEO companies offer paid search submissions but beware: It doesn’t cost a penny to get indexed by the major search engines. And it shouldn’t cost you anything, either. In fact, you don’t even need to submit your site to search engines.
Can Any Inbound Linking Hurt My Ranking?
The answer is clear and simple: No, inbound linking cannot hurt your search ranking. If inbound were to hurt your rank, your competitors would continually link to your site from link farms. Such a scenario is beyond your control. For this reason, Google cannot penalize your site for any inbound linking.
Are Blogs Good for SEO?
Whether blogs are good for SEO purposes is actually irrelevant--the content is key. Blogs are simply publishing platforms. Having said that, the ability to produce high quality content on an ongoing basis can be made much easier by leveraging blog software - especially for the for non-technical user.