Here’s an interesting example of a double listing in Google. You can only get two listings in Google for the same domain, and sometimes you get them one after the other, whcih is always nice because you pick up the extra "domination" of the SERPS for that term.
My client Drake Homes is one of Brisbane’s longest established relocatable homes providers, and runs a very busy operation on the southside of Brisbane. A lot of his traffic comes from Google so we looked at ways to improve his presence and rankings. The example I want to mention today is for the serach term relocatable homes brisbane which his site ranked quite well for already but now that we added in an SEO page specifically optimised for that term, he now has a #2 AND a #3 listing. With further linking work, this can easily go even higher.
You can check out his listings here, although remember, things change from day to day on Google!