My Searches[1] allows you to save up to 25 search queries to run again at a later time. You can save a search from the title list or from the search history page. You must be logged in to My Account[2] to save to My Searches.
To execute a search from your list:
Click Re-Run
To receive updates about new hits for a search:
Set the Alert Frequency (none, daily, weekly, bi-monthly, monthly)