Tony Nunn - You are correct that social posts are not enough to be awarded the MVP award. That said, social is part of what the team looks at when evaluating the impact. It's important that our MVPs help share the vision of Microsoft Teams and assist in extending the reach with things like sharing resources and best practices along with the exciting announcements and updates. Again - it's one piece of the pie.
Shane Bryan - Most definitely. When you submit your nomination in mvp.microsoft.com, you'll want to include everything you do, both externally and internally. The MVPs we have today are rockstar champions within their own organizations and the go-to's for knowledge around Teams.
Participation in the Microsoft Tech Community (here) is something we look at very closely - it takes a 'village' and this community (or village) runs because there are experts both inside and many outside of Microsoft helping to answer questions and start great conversation. Blogs are great - but, again, sharing Teams and educating folks is more than just that. User Group participation, speaking engagements, and forum activity are all very important, as well.