1. Already successful and ready to retire: perhaps you are a coach that left a company and then started your coaching business, which related to what you were doing before. You already have the right connections and have more than enough business right from the get-go, and when the business runs out you plan to retire.
2. Coaching is a Hobby: perhaps you are a coach that isn’t looking to have a business, but just wants to be called ‘a coach’. I don’t recommend this as it hurts the coaching industry as a whole, and thus I would recommend not having an online presence. For more on coach credentials, code of ethics for coaches, or coach training, please visit the International Coach Federation website.
3. You don’t think you need one: perhaps you think it’s a waste of time, energy or money. If this is true, you probably will never read this post anyway because you don’t go on the web.

If, however, you’re new to coaching and you’re just launching your company – it might be best to spend your time connecting with individuals, companies and other potential clients than to spend several weeks trying to put a website together. I recommend, however, at least setting-up a little WordPress.com site that at least explains what you do as a coach, some basic contact information and a blog. This will help you to build credibility to your prospects, and start building a presence on the web.