Background: Despite the benefits provided by online communities and online retailing, administrators and managers are faced with several challenges to successfully manage these platforms. Helping behaviours may assist to overcome these challenges; however, knowledge about this construct in different online environments is limited.Objectives: To investigate the influence of affective and normative commitment on helping behaviour within non-commercial and commercial online environments.Method: Data were collected through online questionnaires. The sample included residential online community members who actively participated in the community during the last 12 months (non-commercial sample) or had made an online purchase during the last 12 months (commercial sample). Non-probability sampling was used and the data analysis included descriptive statistics using SPSS and structural equation modelling using Mplus software.Results: In both online environments, affective commitment positively influenced the helping behaviours of online community members and online customers; however, the relationship between normative commitment and helping behaviour was only significant for the non-commercial online environment. Informational support, satisfaction and subjective norm were confirmed as antecedents of affective and normative commitment for both online environments.Conclusion: Affectively committed online community members and online retail customers are likely to perform helping behaviours and will become affectively and normatively committed when the community and online retailer provide satisfactory service to the members and customers. Online community members who are normatively committed will help fellow members to use the service of the online community; and should online community members and online customers experience subjective norm, they will become normatively committed.

Background: The adoption of online banking is still a concern in developing countries, with limited research in investigating the factors that can lead to the intention to use and the actual usage of online banking.Objectives: This research aims to broaden the knowledge about technology adoption by applying the technology acceptance model (TAM) to the online banking environment in Namibia.Methods: A descriptive, quantitative research design and structural equation modelling (SEM) were employed to analyse the data.Results: The adopted TAM had good model fit if applied to online banking in Namibia. Nine of the 12 hypotheses were accepted.Conclusion: System quality and social influence act as external factors that influence the level of trust, perceived ease of use and perceived usefulness. High levels of ease of use and usefulness of the online banking system result in a positive attitude towards the online banking system that in turn leads to the intention to use the system and then actual usage.Contribution: This study adopted the TAM and included social influence, system quality and perceived trust as factors that can influence the usage of online banking. The study contributed towards the knowledge of technology acceptance from an online banking perspective and can aid the banking sector in increasing the adoption of online banking systems.