These sites are resources for a specific content segment. Law related blogging.
http://www.lawfirmblogging.com/category/blogging

http://kevin.lexblog.com (4 stars)

General blogging resources:

http://www.problogger.net

The value of RSS.
http://www.becomeablogger.com/video-9.html 

Spend some time trying to identify keyword searches  for your business.  Think “accountant blogging tips” or “rss feed accounting news”, or variations to see if you can get industry specific content for your  own business use.  The surge in content publishers has created very niche oriented channels.  These channels appeal across a slimmer marketplace, but there is a premium value transmitted to the audience.  This is the new publishing model that has longstanding media in it’s crosshairs.