i found this one interesting. First result for a 3 word product is the right site i.e the manufacturer. Second result is the same company, exact same website except without the www so its a canonical issue. Plus the second site (which is really the same site) has the second indented listing. Now bear in mind its the exact same site and pages, but for the second listing google has picked a different snippet. Now despite the www version being chosen as the best match its the non www that gets the indent with the exact same content. I really cant get my head round this.