AbstractProviding staff development online provides a number of unique benefits. For example, technology gives the potential to significantly 'scale-up' the number of staff who can participate. This is particularly useful when resources are limited. Nevertheless, it remains to be seen whether these benefits will eventuate in practice. To test this, a case study using an online staff development module 'Introduction to Online Teaching' was conducted. The results revealed a problem known as 'churn'. That is, the majority of users went to the site only once or twice and then only for a short amount of time. This paper looks at possible causes for this and provides suggestions for improving participation in voluntary online staff development activities.