This study was concerned with indentifying reasons behind patterns of social media (Web 2.0) usage associated with 8 of Australia's major health professions . Attention was given to uncovering some of the more significant motivations for the resistance or adoption of Web 2.0 technologies for practice promotion and health care delivery by Australian Allied Health Professionals (AHP). Of the 935 respondents, 9.5% of participants indicated that they used Web 2.0 for their professional work, 19.1% of them did not use it for work but used it for their personal needs and 71.3% of them did not use Web 2.0 at all. Participants have indicated that the main reason for 'choosing not to adopt' Web 2.0 applications as a way of delivering health care to their patients is due to the health professionals' lack of understanding of Web 2.0 (83.3%), whilst the main reason for 'choosing to adopt' Web 2.0 applications is the perception that Web 2.0 is a quick and effective method of communication (73.0%). Australian AHPs are willing to undertake online educational courses (n = 553, 58 %) designed to up skill them about how Web 2.0 may be used for practice promotion and health care delivery.