Google can notify you when there are new results for specific search terms. Go to the https://www.google.com/alerts page to get started.
You will see a search box - enter the search terms that you want to search for. You can leave them as-is, or look at the options provided by clicking on that drop-down menu.

If you choose the options menu, you'll see the following choices where you can change how/when you're notified.

Any search alerts you've set will show up on the google alerts page, and you can edit/delete them from there.
