B5media.com
- Topical network of bloggers.
- http://www.b5media.com/

Weblogs, Inc.
- Creating trade weblogs across niche industries in which user participation is an essential component of the resulting product.
- http://weblogsinc.com/

BlogMedia
- Content network and services.
- http://www.blogmedia.biz/

9rules Network
- Blogging network containing content from independent authors.
- http://9rules.com/

Problog Network
- Blogging network of independently owned professional blogs.
- http://www.problognetwork.com

Creative Weblogging
- A network of blogs catering to executives and individuals.
- http://www.creative-weblogging.com

Blog Network List
- A list of blog networks in the blogosphere.
- http://www.blognetworklist.com/