The document discusses 5 common mistakes in business writing and strategies to avoid them. The mistakes are: 1) Overlooking niche audience potential, 2) Spinning of content, 3) Writing content for search engines instead of customers, 4) Overpromotion and excessive links, 5) Settling for low-quality content. The document provides strategies for each mistake such as targeting niche audiences, emphasizing unique content, prioritizing customers, limiting links, and investing in high-quality content.