Listserv allows you to change your view of the list archives from Classic View to Forum or Blog view.
Classic view displays a list of messages in chronological order. You can search by Subject, From, or Date and also sort on those fields.
Forum view is like a message board where each topic is based on the subject line.
Blog view is similar to the Forum view but uses a custom style sheet NOTE: The list owner must enable blog view in order to select that view.
See L-Soft's Video Tutorial - Change my list archives into a threaded forum and Change my email list into a blog