Ng, Connie SL, Wing Sum Cheung, and Khe Foon Hew. "Interaction in asynchronous discussion forums: peer facilitation techniques." Journal of Computer Assisted Learning 28.3 (2012): 280-294.

This study explores peer facilitation in asynchronous online discussions, focusing on two graduate-level blended courses for Asian Pacific students. Through cross-case comparison, it identifies effective peer facilitation techniques that promote interaction, such as “showing appreciation” and “considering others' viewpoints.” It highlights the importance of the online discussion design and cultural backgrounds, noting that some participants may find challenging others' ideas culturally inappropriate. Techniques like “general invitation to contribute” can encourage engagement. The study advises caution with traditional strategies, like directing messages at specific participants, which may discourage contributions instead.