Aaron at SEO Book mentions a site called SEO Digger which has a free competitive analysis tool that catalogs keywords a website ranks for.

Alternatives tool are: URL Trends, KeyCompete and SpyFu. All these domain tracking tools will help you download the keywords and adwords used by your adversaries.

Author

Navneet Kaushal is the Editor-in-Chief of PageTraffic Buzz. A leading search strategist, Navneet helps clients maintain an edge in search engines and the online media. Navneet is also the CEO of SEO Services company PageTraffic which is one of the leading search marketing company in Asia.