Duplicate the Things That Work
Once you find a niche that is worth the effort, it is time to starting building up your web property.
For example, let's say my Yoga DVDs web site is doing really well. Ideally you want to make this website a destination for users interested in Yoga DVDs.
You could accomplish this by finding and writing reviews for as many Yoga DVDs as possible, and you might even go as far as to write your own Toga tips and techniques that you can share with your visitors (Google loves websites with a lot of pages of content on them).
You should also build more of them!
While you are working on building my authority site on Yoga DVDs, it is also a good idea to start more sites on the same topic.
For example, if I determine that Yoga DVDs is a good niche, I would build a second site. When the new site starts to pick up, I will start a third website. When the third starts to get picked up, I will make a forth, and so on and so on.
It makes sense, right?
Why tackle a new niche that might not work when you have found one that you know there are a lot of buyers willing to spend money in?
The best part about it is...
You can use each one of your websites to boost the rank of the newest website you are working on.
For example, we just finished building our first website on Yoga DVDs. We then create a second website on Yoga DVDs and link the first website to our second. Now when we start a third website, we can link to it from our first and second websites.
Think about the amount of link power you can harness by owning 5 different websites in your niche. You could practically rank a brand new site at the top of Google in a matter of weeks if you have this type of power at your disposal.
IMPORTANT NOTE* If you are going to be building multiple websites in the same niche, it is a good idea to have your web host assign a separate dedicated IP address to each one of your websites. While a dedicated IP does cost extra money ($1-2/m), it will be worth it in the long run.
If you have 5 Yoga DVD websites on the same IP, the search engines will discover your link network very quickly. If you keep them spread out over different IP addresses, or even different datacenters (with different hosting providers), the search engines won't be able to uncover your little link network.