Guest blogging is when you or another blog owner allows others to write content for a particular website. The trade-off is a link back to the author’s own website in order to help create backlinks to improve page ranking in Google. This also helps build an online reputation. It’s a popular symbiotic transaction on the Internet as it helps both parties develop each website without spending a single dime. It’s a practice that many search engine optimization experts use in order to help develop a client’s reputation to increase traffic.