I promote bitcoin using telegram channel and active advertising with social media way like facebook dan twitter, I think most effective by using social media because very day million people using their social media and become interested when many people know with bitcoin and altcoin as digital currency and investment asstes.
for social medias yes its easy to promote btc or a crypto but
im more curious on how you do it on telegram . telegram is verry bloated mostly with bots and spams so chances that your mesage are gonna be fall behind easily . i havent also see ads on telegram but even if there is , paying them with your own money just for the sake of promoting btc looks funny because the btc team didnt even promote it by them selves . grabbing random peoples email and send them promotions can also be consider as spam
They mostly send using BOT in some groups or even in other profile as we have already has experienced such thing,i often receive
messages from other accounts asking to check their site to invest in Bitcoin (but be aware that majority of them
are scammers or even hacker)
But about facebook is one of the best platform to use promoting Bitcoin because our Close friends might be interested in investing
and also easily to ask us once they found our post and this will be depending on what kind of person you are
in their faces so they might believe you or just deny your post.
But i am focusing now in Personal approach as i am PMming my friends or family members telling them some good traits about
Bitcoin investing.
and i have successfully encouraged some of them and gaining from their capital now(because i have told them when the market
is fading in 2018)though they are waiting for 2 years now its ok because all of their funds
vested here is the amount they can afford to lose.