1. The article highlights the importance of guest posting as a strategy to grow your online presence and authority. It emphasizes that guest posting on high-quality, relevant websites can help you reach new audiences, build backlinks, and establish yourself as an expert in your industry.

2. The article presents a list of 20 top free guest posting sites that can be used to achieve these goals. The sites are categorized into different niches, such as technology, marketing, finance, and lifestyle, making it easier for readers to find the most suitable platforms for their content.

3. Each guest posting site is briefly described, including information about its domain authority, traffic, and the type of content it typically publishes. The article also provides tips on how to approach and pitch these sites to increase the chances of getting your guest post published.