Web >> Measurement >>  How to test link popularity at well known search engines

For example to check link popularity of www.yahoo.com Alltheweb: at search box type: link.all:www.yahoo.com -site:yahoo.com Altavista: link:www.yahoo.com Google: at searchbox type link:www.yahoo.com HotBot/Inktomi linkdomain:yahoo.com MSN linkdomain:www.yahoo.com