Lens Review: Panasonic 10-25mm f/1.7
OM System M.Zuiko 20mm f/1.4 PRO Hands-on Review (Imaging Resource).
Photography for Beginners Guide (42West).
The Fastest Glass Money Can Buy (Explora).
GX9 test at Xitek.
Plenty of news on the facebook OMD group, Panasonic FF and the GH5 group.