Google Sitemaps are an effective way to let Google know which pages of your website are available for indexing. Though they go to great lengths to point out that submitting a sitemap is only a suggestion, and not a command, Google does use your sitemap to provide insights into how your website is being indexed and found by web searchers.

Here’s how I added a Google Sitemap for Moral Metric in two shakes of a lamb’s tail.

First, I made sure that my HomeController was defined as a resource in my routes.rb file:

map.resource :home

My HomeController is very sparse – it only has one public method: index. I wanted to have my application return XML when Google asked for XML, so rather than adding a new method, I used Rails’ respond_to blocks: