We outline a business model based analysis framework, which helps examine the intricacies and evolution of eBusiness. While the current research has mostly examined volume and scope as indicators of eBusiness evolution, we suggest that this analysis should be augmented with qualitative analysis of the evolution of eBusiness models, their implementation strategies and diffusion. The critical part of this examination is the identification of two constraints that affect eBusiness model evolution:

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... he maturity of the electronic infrastructure (ETI), and environmental factors consisting of regulatory frameworks and push-pull diffusion factors. After presenting the defining concepts of our approach, we exemplify the value of the framework by analyzing the evolution of B2B and B2C business in the US over the past 5 years.