I often hear people say that a website should be constantly updated. Suggestions are made, like "write a new article every week." But is this really necessary, and is it wise?
I can see the sense in it if the site is to make money from the advertisements on the site, but not if the site sells a single product or a limited range, nor if the site is meant to attract clients for a service-provider. The work of a dental office, for example, doesn't change every week.
What is the best approach?