This study examines the social network of the learner relationships and online interactions in a graduate course
using weblogs for writing and sharing weekly reflective journals during a 16-week semester. The social network
data of the learner relationshipswere gathered twice by measuring learners' perceived emotional closenesswith
other learners. In terms of the online interactions among the learners, the numbers of replies that individual
learners had posted to and received fromothers' postingswere respectively calculated and analyzed. The findings
from these measures indicated that the social network patterns and values as measured by peer relationships
were noticeably changed at the end of the semester,when compared to that at the beginning. The impact of blogging
activities on such changeswas supported by correlational analysis between the peer relationships in the social
network and online interactions through the learner blogs.