Groovy Calamari is a curated publication full of interesting, relevant links about Microservices, Micronaut and Groovy Ecosystem (Grails, Gradle, ...). Curated by Sergio del Amo and published weekly. Free.
@graemerocher, @jeffscottbrown join OCI team as well. Having the original contributors still heavily involved means great news for Grails. In case you are wondering, OCI is an IT solutions engineering firm.