Alerts. They are easy to set up and you want to have a few set up -- but what are they? Alerts are where software automatically discovers new web content that includes a particular word or phrase and sends you an email to let you know that something new has appeared.
It's easy enough to do. Have your name, your firm name, a topic of interest (e.g., "death penalty" or "american idol"), etc. set up with an alert system and then sit back and wait for the emails to arrive.
Google Alerts will automatically let you know when new stuff appears within its search results. For details, go here.
TweetBeep searches Twitter and alerts you as you have requested - exclusively within tweets. To learn more, go here.