Ads and sponsored links.
No, there are so many search engines out there and they are all easy to utilize, that it would be a waste of money, Searching is fast and easy.
There are two types of search engines 1. Hybrid search engines 2. Meta search engines
Spider-Based Search Engines. Directory-Based Search Engines. Link-Based Search Engines.
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.
name five search engines
It is where you can search anything you wanted to. Yahoo ang Google are example of search engines.
Search engines help you find information online. With literally trillions of pages available on the Internet, it is next to impossible to make use of these information without search engines. There are different search engines out there, but they basically do the same - they regularly visit the vast internet, they keep in a database the information they found and where they found them, and they allow users to type in the search box. You may want to check the link in my profile page for more information about search engines and how they work.
you dont, thats why they are crawler search engines.
Discovery
Crawler based search engines such as google .com HUman powered directories and Hybrid search engines
Yes there is search engines for assets. Just google it on google and you can find some many search engines for assets.