Submitting a site to the major search engines has to be done manually.
There are about 12 major search engines in general, but if you mean how many search engines that are around the globe, refer to the related links below.
Google is the most used, than Bing and Yahoo follow. All the other search engines are used by a very small percentage of world's population. Directories are not that popular anymore, since the invention of search engines.
The 4 most popular search engines, in terms of the amount of searches performed on them daily are as follows:GoogleYahooBing (MSN)Ask
Google, Bing, Yahoo, Ask A major directory is ABOUT.COM I THINK
You can search on the major search engines like Google on where you can download Noah 2014 for free.
Spider-Based Search Engines. Directory-Based Search Engines. Link-Based Search Engines.
The 4 most popular search engines, in terms of the amount of searches performed on them daily are as follows:GoogleYahooBing (MSN)Ask
Not on the major search engines but you can on certain website searches.
There are primarily three types of search engines: traditional search engines, vertical search engines, and meta-search engines. Traditional search engines like Google and Bing index the entire web and return results based on algorithms. Vertical search engines focus on specific niches or industries, such as medical or academic searches. Meta-search engines aggregate results from multiple search engines to provide a broader range of information.
Horizontal search engines are general-purpose search engines such as Google and Yahoo. Vertical search engines, meanwhile, are specialized by content such as Trulia, Mocavo and Yelp.
A websites rating is affected by its popularity by two major search engines: Google and yahoo.