This paper explores the various B2B e-business models commonly used using in-depth interviews and case studies conducted with Australian agribusiness firms. There is an apparent need to rethink the types of e-business models to be adopted as businesses make their transition toward the electronic environment. This is particularly evident in the B2B market where e-business has seen a significant growth. From the analysis, 10 B2B e-business models were identified with seven of them regarded as commonly used by agribusiness firms. Furthermore, rationales on the adoption of these models were also discussed and comparisons were made based on organisational size, industry sector and the current state of e-business model adoption.