One instruction on this blog is worth more than the rest of the library combined: move the link and watch what happens. Teresa Griffith writes about testing the position of an affiliate link within a page, changing nothing else, and letting the numbers tell you where it belongs. Almost nobody does that and everybody could.
The affiliate posts carry the other useful points. Spreading across more than one programme rather than depending on a single company. Watching not just whether a link performs but where. Accepting that a business with no stock and no shipping still demands real work.
The network marketing and internet promotion posts restate the standard advice in an unhurried voice and will not surprise anybody.
There is a piece asking whether the people at the top know something you do not, and it answers that they mostly know how to keep going.
Take the link testing instruction and apply it this week. Skim the rest.