Create and sell an Ebook for passive income

This is an approach with is almost as popular as the website and affiliate sales link outlined above and for good reason!

I can absolutely guarantee that you're expert enough in one field or another that you could produce 60-80 pages of content on a niche you know well. Bundle this content into a single ebook to sell online and you could soon to bringing in at least £250 a month by networking online through sites such as LinkedIn or Twitter, through publishing guest blog posts on sites in your niche or by utilising easy to learn SEO skills.