I used to fetch edu links using link and linkdomain using yahoo search operators.
Last i did a successfull search for edu links 2 years ago. But it is not working now.
Has the operators changed .
Kindly provide me the alternative to search operators or another resource to find edu links.
Example URL I am trying is
"link:http://professionals.collegeboard.com/testing/psat/scores +site:.edu -site:.com -site:.org -site:.net"