Newblog module is a reimplementation of Drupal's core blog module with some additional features.
- Group blog taxonomy vocabulary for blogs aggregating posts from many users.
- Block for user blogs to show terms grouped by vocabulary from that user's posts. (i.e. non-cloudy tag clouds).
- Context (2.x) condition for blog posts.
- FeedAPI support to import nodes as blog posts.
- Block to display create content links.
This module hasn't been actively developed for some time, but it could use some attention:
- Context 3.x support
- Flag 2.x support (to replace custom newblog SQL table and blog property on node objects)