FYI: All have different commands that a user can type directly into the search box. I nice backlink checker can automate it, but if you want to do it manually. The commands are as follows (using this domain as an example).
Google: link:v7n.com
Yahoo: linkdomain:v7n.com -site:v7n.com
MSN: link:
www.v7n.com -site:
www.v7n.com
Per my understanding, Google does not recognize the -site