hypodermic needle theory

Hypodermic needle theory
"The hypodermic needle model (also known as the hypodermic-syringe model, transmission-belt model, or magic bullet theory) is a model of communications suggesting that an intended message is directly received and wholly accepted by the receiver".

reference from: https://en.wikipedia.org/wiki/Hypodermic_needle_model 

This is often still used in modern day media formats including social media. For example when people use Instagram they always put content up on the social media platform's for example when they are trying to show only something what is tidy and not what it actually looks like. They will always crop out the mess and keep all the tidy content that might not actually be true to life. Also when celebrities are using Instagram to try and advertise something they want to try and get their followers to believe everything they say.





Two step flow
The two flow step theory will work well on Instagram because you will be able to have a load of followers, you will be able to have a better spread of follower. This will be able to get more people to like you and this will also get businesses to look at your account and probably ask you to promote there product. Businesses commonly use celebrities with a large following count to often promote there products on social media.This is because they will have more people to show and they will be able to spread the product in a bigger range of people.

I will describe it by they start at the social media stage the move to opinion leaders then they will be able to shear it to a mass of people.
This is where a company or a brand try to get a celebrity with a wide audience to promote them and then get there fans to keep spreading it. They will be payed to give a good review and to get people to buy the product that they are trying to sell.