How to find what Google Adwords a site is using?

[spydersingh]

Just tidying up the marketing for the work website and was wondering whether or not one could look up which adwords or search tags another website is using?

Is it possible? I did a few quick searches but came across a few fee paying sites that allow you to do this. Is it a case of "View Source" codes on a site or I imagine more to it?

[br d]

https://adwords.google.co.uk/select/KeywordToolExt...