Hi Anthony,
I've done a YouTube video "Create Your Own Search Engine" which explains how you can create your own search engine similar to Google. In fact it uses the Google Search technology, but you can restrict the search to the sites that you enter.
You can keep it private to yourself, or you can share it with the public. Very handy if you have particular expert knowledge and know the best sites to look for information, you can share your knowledge of the best sites with others.