A lot of businesses which are trying to expand into new markets or new products feel that it would be better to have a new website, where the focus can be entirely upon what they want it to be. This has a number of advantages over trying to add new content over to your existing website: It helps you to avoid diluting the content of your website, and it doesn’t require massive reorganisation of an already working product. Likewise, there are a number of advantages with expanding your existing website to include the new focus: You have a domain name which you’ve already heavily invested into, and which is already bringing you business; meaning that any new content, any new enterprise, will immediately get some of the benefit of prior work (something you won’t get with a brand new domain).

What it comes down to is whether or not you want to risk your current success for the chance of making a quick impact. You can also consider some of the biggest websites in the world wide web, which have wide ranging products all on one website. They do this for the reasons already discussed, but also because it helps with their brand recognition: One website for one company gives them the ability to push only one website as a solution to multiple situations, providing a greater chance of receiving widespread recognition amongst the population. If you have dozens of websites each catering to niche markets, you’ll likely never achieve this.