Anyone used an SEO company they are happy with and would recommend to others?

[inhouseseo]

I have been researching SEO companies. Some are not willing to provide references, while others have references with lukewarm recommendations.

Any e-commerce owners/managers here that have used an SEO company that they would recommend?

I am about to give up and stick to doing it in-house!

[bradkrussell]

A good place to start is SEOmoz's own list of recommended companies - http://www.seomoz.org/article/recommended.

I'm sure some others on here have the other companies they are willing to recommend as well.