Link building
A course from ClickMinded using Alexa tools, I can't help think you could use Google searches for most of this https://course.clickminded.com/courses/458097/lectures/8468782 Gareth Hoyle - Low Cost Link building Google, Linkedin, the telephone. Spy on competitors - MajesticSEO, Ahrefs allmytweets, see all of a persons tweets and find email contacts Free directories. Yell.com, supplier directories, alumni directories, staff discount. Seed sites ...