Setting up an alert profile on Google Scholar - this is my recommended solution
Navigate to Google Scholar
Click on Advanced Scholar Search
Compose your search
If you wish to limit the field, use the collections options to refine your search
Run your search, scroll to the bottom of the first screen
Click on Create email alert
Give your Alert Query a name, fill in your email address
Click on Create Alert
Respond to email sent to your email address to verify the alert
Setting up an alert profile on Web of Science
Navigate to Web of Knowledge
Go to UCT Library Home Page
Point at Electronic Resources, select Databases from the top of the list
Click on W in the alphabet across the top of the resulting screen
Select Web of Science, second on the list
Click on Web of Science
Create a My ResearcherID – remember your password for future use!
Run a search on Web of Science – NB the default is Web of Knowledge, you are unable to save alerts for this option
Click on Search History, click on the Save History/Create Alert button
Type in your email address and password (if you are not already logged in)
Give your history a name and description
Check the Send Me E-mail Alerts box
Fill in the delivery e-mail address, change the Alert type, and E-mail format, check the E-mail frequency radio button
Click on the Save button
You may create more than one alert if you have multiple research fields
Note that the alert has a 6 month lifespan