In Google email all you see is the notice of the alert for your keyword. You have to open the alert and scan through the listings. My alerts are categorized into news, web and blogs. Scan through the brief descriptions or each listing and see if you find anything interesting for your purposes. After a while, you will begin to see patterns that will shorten the time for your search. Oftentimes, the search results are not even related to your specific keywords and can be eliminated very quickly.