Pinterest is a media sharing app where you can post and share your media contents like blogs, videos, digital artworks and etc. You can save, like, download, pin, post and share using this app.
With me I have always using this app and website whenever I am looking for artworks and wallpapers, as well as photo filters. I also have used this app to promote my youtube videos.
The trick that you should do before posting here making a artistic template to promote what you are promoting.
Example would be like this.
But I think, it is REALLY made PERFECT for bloggers. I mean, I mostly saw blogs and articles here. But, it is not limited to that tho.
So if you have anything to promote for, just make an account, make beautiful templates, and post.
Goodluck!