[digitalone]

If you don't know what your competitors are doing, it's difficult to make intelligent decisions that will keep your current customers, and entice new ones.

Here are some tools that will help you gather in-depth information on your competitors strengths and weaknesses:-

1. Alexa
2. SEO Book: Page Similarity Comparison Tool
3. Google AdWords Keyword Tool
4. DomainTools: Whois
5. SpyFu
6. Open Site Explorer
7. Google Alerts