Direct Mail Sending announcements of your new website or a major change in your existing website to potential and current clients is a good idea. You may think people are lazy and if your website address isn't on their computer, they won't bother to visit. People can just carry your postcard or letter to their desk and type it in. The trick is to SELL them your website by telling them how they will benefit by visiting. There are many ways to promote your website on and off the internet.
Some great ways are free.
Sometimes it is better to spend a little money. Which ways are best for you depend on how much time and money you can afford to spend on your website, and what your website is offering. The broader your target audience is, the more marketing options are available to you. My website marketing articles are designed for people with little time and even less money. If you have substantial money and very little time, try some of the online marketing companies offering their services on the internet.