Technology used to promote a touristic region

Hello, I need some advice on how I can implement technology into promoting a touristic region (cities and attractions), and ways to apply it. I just need some ideas on technology you can use to do that, and digitalization of the site. I need it as a starting point for a project (I need only some sources where I can extract information from, not more). And if someone could give me some websites or articles on that, it would be more than welcome, books also that I can read and get some ideas from. Thank you in advance!