Derrick Harris used to be a GigaOM reporter on the big data beat. When GigaOM went under he moved on to doing media for Mesosphere.
Looks like Harris launched out on his own again in January, doing a combo of blogging, newsletter, and podcasting. All of it can be found at architecht.io. The interviewee lineup on the podcast looks especially good with some high profile names like Eric Brewer, Mike Olson, Jay Kreps, and Julia Austin.