A successful website needs regular attention from its owner. That might mean adding new articles, uploading image galleries, updating catalog of items, or responding to your customers’ requests.
Every website is different. While an online news agency will do several dozen updates daily, an online jewelry store will, probably, need a couple of weekly updates. The point is that once you have a website, you have to dedicate some resources to keep it up-to-date and attractive to your visitors.