Ok, so I'm guilty too.  And I spend 40+ hours a week talking to people about the importance of consistent blog posts on a business blog.  But, we're all human.  We all have busy days, to-do lists and sometimes overwhelming responsibility. 

A successful business blog requires slight discipline, but just like anything else, with organization it becomes second nature. 

I remember reading 7 Habits of Highly Effective People, and it suggested setting appointments with yourself.  This is a powerful exercise, and can be applied to all facets of life.

I have a goal to post 2-3 times per week, and am setting appointments in my Outlook calendar.  When I see three 15-minute appointments throughout my week, all of the sudden my blog is no longer a burden.  I know it's a quick process, and the benefits far outweigh the 45 minutes I dedicate per week.