There are popular packages for the sorts of things that a lower-level Python framework might:
- http://www.gorillatoolkit.org/ has a more flexible router, sessions, and some other basics on the Web side
- Built-in html/template is a pretty good place to start. (The context-aware escaping is something I wish I had.)
- Popular database tools include jmoiron/sqlx and jinzhu/gorm on GitHub.
- gokit.io is mostly about internal services rather than frontends, but may have parts of general interest. It includes example services.
- godoc.org links to a bunch of popular packages and has search and such. Incidentally, its own source is available: https://github.com/golang/gddo
I'd say Go is not going to get you to a releasable DB-backed Web app anywhere near as fast as Django or any of the other well-known dyn-language frameworks. I think the language has the bones where you could get that sort of app to faster time-to-first-usefulness, without entirely giving up the easy-to-follow-what's-happening and pick-your-parts aspects, but probably not there now.