Grain is a wide-purpose static site generator, designed for websites of any complexity and structure. Grain utilizes the full power of Groovy for page templates and supports a variety of markups. Grain provides everything you need to create a company website, project documentation, or a personal blog.
When not in Grails, I am mainly a Wordpress user. However, the OCI Grails team takes automation deployment to the extreme, and I am discovering the goodness of static website builders. Thus, I may give Grain a try soon.