Since a year now the Debian reproducible builds folks have written a weekly report. The idea of the weekly reports is to inform and update the project and everyone who is curious about the progress we are making. Also it highlights this is a team effort and credits the many people who help towards our goals.
The weekly reports are published as a blog so you can subscribe via the usual means.
Also, while this was started by the Debian reproducible builds folks and mainly still is a report about the progress in Debian, it also covers developments in upstream projects and other distributions.