At the end of complete Search Engine Optimization (SEO) there is Submission
After you have accomplished all of the previously mentioned tasks, one more step remains to be done: Submission. You have to Submit your website to the Search Engines.
Many of Website owners who don’t have too much experiences with Web Site Optimization for Search Engines, make a common mistake: They submit a website which is not optimized at all, or optimized to some degree. That could be a big mistake. Spiders do not visit new web sites too often (or at least sites with low traffic) so, the best for you is that your web site is prepared for their visit.
You can submit your website manually or automatically to search engines and directories. There is a lot of free and professional software to do that. Also there are many professional companies who offers search engine optimization and submission services. Many of them will perform those tasks in your favor for a modest fee. Optimize.SE is a company which can do that for You.