PPC Sponsors, how do you find out?

[ftaylor]

I have seen alot of people post things like "these keywords have 93 keyword sponsors, attracting as much as $9 per click."

How do you find this out?

Cheers,

Finbarr

 

[rebirth]

Keyword software, like Keyword Elite, Keyword Discovery, wordtracker, etc.

Hope that answers your question.