Hi,
as I summarized two months ago https://lists.wikimedia.org/pipermail/social-media/2015-August/003213.html on this list in another context, back in 2013/14 we collaborated with the "Today's Article for Improvement" https://en.wikipedia.org/wiki/Wikipedia:Today%27s_articles_for_improvement team on the English Wikipedia, posting social media invitations to edit improve articles from this community-curated list.
User:Coin945 has just started an attempt to revive this (see https://en.wikipedia.org/wiki/Wikipedia_talk:Today%27s_articles_for_improvem... ) and already posted some ideas at https://meta.wikimedia.org/wiki/Social_media/Calendar#October . I'm passing this on to this list as not everyone might watch the Meta-wiki pages. As mentioned earlier, the experiment back them left me wondering how to best achieve impact (in form of actual edits caused by those posts), but perhaps the current SM team has some new ideas.