You cannot take shortcuts on your marketing content and expect to be successful, according to Kevin Grunert in his book Writing SEO Content for Conversions: A Guide for Success with Content Marketing. Success in promoting goods or services on the Internet is determined by your ability to create great content that converts visitors into customers. What matters most is not the number of visitors to your website, but the number and quality of customers won for your business.
This means that you need to spend a lot of time writing useful content, and in particular:
I am hesitant to read any book with SEO in the title, for fear that it will be advocating ways of gaming the system by the use of link frenzy and keyword stuffing, to fool as many people as possible into visiting your website. Fortunately that proved not to be the case with this book, which provides a clear explanation of the route to legitimate success, the difficult and time-consuming task of providing content which is helpful to your target audience.
This is quite a short book, but it is easy to read and understand, and contains plenty of useful advice on how to find inspiration and develop your content.