A Group Blog is for you to share your thoughts or information on a topic. Compared to a discussion thread, it’s closer to a one-sided communications feature. The objective of the blog is not necessarily to get feedback (although, you probably will). Blogs can be an opinion piece, can include a call-to-action or act as an introduction, providing information about the group.
A Group Discussion is intended to be a conversation between GCcollab members. You can receive answers and gather the opinions of members. Any member of a group can post a discussion topic, give context, or ask questions. Group members can reply to the original discussion post, or to comments made by others in response to the original post. It then becomes a continuous back and forth discussion of the group members’ ideas, opinions, questions and interpretations of the topic at hand.