The Jesus Manifesto is run by Missio Dei, and intentional community of Mennonites in Minneapolis, dedicated to "Following Jesus' Way of Peace, Simplicity, Prayer, and Hospitality."
To explain the purpose of the Jesus Manifesto, I'll just copy-paste from their about page.
This website exists to subvert the Empire (wherever it is found). But more importantly, it exists to call people to embrace the Kingdom of God.
When Jesus started his ministry, he issued a manifesto–a statement declaring the coming of the Kingdom. To find Jesus’ manifesto, some people look to the Sermon on the Mount, but my vote is for Luke 4:18-19:
The Spirit of the Lord is on me,
because he has anointed me
to proclaim good news to the poor.
He has sent me to proclaim freedom for the prisoners
and recovery of sight for the blind,
to set the oppressed free,
to proclaim the year of the Lord’s favor.
This passage has all the earmarks of a political manifesto. To the 1st century Jew, it evoked images of Messiah, of Jubilee, of reversal. The passage sets a trajectory for the rest of Luke, as well as the book of Acts. And we believe that the Jesus Manifesto should be our manifesto as well.
We believe that the Kingdom of God is real, not an abstraction. We believe that Jesus is our king, not our figurehead. And if we are to follow him as our king, we must embrace the way of life that he sets out for us in the gospels.
And I say, Amen.