How am I able to add Yahoo search engine to my website?

There are two ways to add a search engine to your site: 1) Outsource a pre-created script 2) Install your own script Just like anything else, there are advantages and disadvantages to both methods. If you do a Google search for "search engine script", you can find tons of sites that offer free search engine scripts. Most of them are written in Perl/CGI or ASP so they do require you to know a bit about configuring scripts and uploading files. Even though the search engine script is already written you still need to install it on your web server. This may require you to get some information from your web host because the scripts usually ask you to input certain information regarding your host. If you have a basic understanding of installing scripts then you shouldn't have a problem. However, if this intimidates you I'd recommend outsourcing a search function like I did.