You might find yourself wanting to limit searchs to specfic sites, ones that you deam reliable and accurate. You can create a custom search engine that you can use for your use or to distrubute to students through google. Whether it is one website, multiple websites, or individual web pages, you designate which places should be included. Examples include a teacher who wanted to limit her students to finding resources within specific websites that she had pre-approved, an institution creating a custom search for student-related issues, a tech-related custom search composed of trusted resources, and more.