ERP consultants are very busy people. They have billable hours to book, meetings with clients and prospects, upgrades, implementations, training, etc... So WHY the heck would any sensible ERP consultant waste time with blogging? If you are lucky enough to have a very experienced and driven marketing person, they could probably come up with blogs on their own. There are also blogging services that will write blogs for you - just make sure they know your company and your goals and know your industry. If you fall a little short on the marketing side, then blogging won't happen unless it comes from your own head. Fortunately, your head is filled with so much ERP experience and knowledge that there is no lack of content.