Tagging web pages enables important marketing tools and goodies such as visitor analytics, A/B testing and visitor profiling. But now tag management systems are being leveraged by marketers to synchronize data among many different marketing software packages.
Marketing technology guru Scott Brinker says tag management software can be a perfect marketing middleware solution, because they are marketing software solutions that make other marketing software solutions work better together. Check out his blog post on the topic on his Chief Marketing Technologist Blog here.