Off page SEO refers to techniques that can be used to improve the position of a web site in the search engine results page (SERPs). Many people associate off-page SEO with link building but it is not only that. In general, Off Page SEO has to do with promotion methods beyond website design for the purpose of ranking a website higher in the search results.

Ya, you are right. You mentioned some important off page techniques like business listing, ads posting, social media, blog commenting etc.