This article reviews a popular remediation technology for ground water contaminants. It is written in conjunction with an environmental consulting firm in the UK to corroborate how awesome the technology is. With quotes from high level people at the remediation company, this article is definitely sourced well. Some could see it as an advertising gimmick, but I think that writing the article with the consultants helps as a testimony to the technology. They also do a good job of explaining the company and the product so you can see how credible they seem.