Many people have asked my "is it difficult to blog?" I find that I get this question most often from businesspeople who are considering blogging to support their business.
Well, the choice of what you blog about and the process of writing compelling posts is a personal one and "the difficulty factor" depends on your abilities. Keys to success are regular updates, an authentic voice and an interesting point of view.
Content aside, the technical process of blogging is simple. There are many good blogging tools available. I use TypePad for Web Ink Now. I love the intuitive interface. If you can use Microsoft Word and PowerPoint, you can easily learn TypePad.