[anthony_franco]

I'd do both. Post it first to your blog. Spread it on twitter/facebook/email list with a link to your blog.

Then after a few days copy it onto other platforms. Like Medium (with a link back to the original) and LinkedIn Pulse (if it makes sense for your audience).

[colloqu]

Wouldn't that just result in duplicate content?

[anthony_franco]

Are you talking about it from an SEO perspective?

If it points back to the original Google recognizes the original for SEO purposes.