I've recently been more interested in a business that is run completely online. By doing this, time can be freed up to focus on other things, be with family, and travel. Yes there is work involved with any online business but it can be done when you want and where you want.
The method that I first think of when making money online are ads with Google Adsense. There seems to be some decent money to be made with Clickbank.
If you are not familiar with making websites, you may want to look at making Youtube videos. Once you get enough views you can monitize your videos. Although you will need to get a <b>huge</b> number of viewers in order to make anything, it may be worth the effort for you if you can make videos people want to watch.
There are so many more ways to make money online, you can sell products through your own store or through amazon or ebay, you can try affiliate marketing, or selling your own digital products such as ebooks.