First Magazine for Yahad: HaNe'eman
All the sites linked to in this post are in Hebrew.
You can find a soft copy of the new magazine here.
(Unfortunately, some crazy protesters already burned the magazines, which included pictures of great rabbis. Hashem Yerahem.)
You can also find Rav Mazuz's attitude towards Chabad here.
And the excellent and well-presented דברי שלום ואמת made last week talks about Rav Mazuz's life and philosophy, and defends against those who attack the Yahad party.