=>selling of information products[ebooks, video,courses].
=>Advertising people products and services.
=>Partnering with other advertising networking that pays you for click they receive on your sites via they ads eg kontera, google adsense, addynamo, chikita, infolinks etc.

=>Membership, where people Subscribe Daily, Weekly, Monthly, Yearly to Access your Content.

=>Affiliate, Helping people sell their stuff on your blog/site and getting reward, Commission for sales made.

Bonus: you can as well Feature People on your Blog inform of Interviews, Question/Answers to get noticed on your blog and Charge them for that also.

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