For a recent website I worked on, the client wanted search results to be grouped by content type, and also wanted to control which content type results were displayed first, second, and third. While you can get most of the way there in terms of sorting search results using Views, if the desired order of the content types doesn't luckily correspond to some kind of alphabetical sorting of the content type's names, you'll need to do a little configuration and custom module work to make this happen. 

I will walk you through how to do this using a vanilla...Read more