I don't mind some Instagram ads which are directly related to accounts I follow. For example, follow some musicians on Instagram and get an advert for some othe

I don't mind some Instagram ads which are directly related to accounts I follow. For example, follow some musicians on Instagram and get an advert for some other artist's new album. I don't use Facebook but I guess it could work similarly if you follow certain interest-related groups. However, I wouldn't like if it was using my interactions with friends to target me. Both of these are better that tracking your activity all over the web and using that to target you.