For me, I think the best article/video that I've seen and read was your post on 3speak. Here is the link:

https://steemit.com/threespeak/@theycallmedan/help-bring-big-content-creators-to-steem-and-earn-an-upvote

I know you only asked for one, but I thought I'd throw in a few because they too were popular articles, here they go in order:

https://steemit.com/exyle/@exyle/a-deeper-look-into-3speak-video-playback-donations-and-the-onboarding-process-pretty-damn-impressive-so-far

https://steemit.com/palnet/@taskmaster4450/this-week-s-big-news-palenet-and-all-it-does-for-steem