subitens em um resultado de busca

Façam uma busca no google, prcurando o site da globo.com, vcs verão que no resultado da busca aparece alguns sub itens, referentes a alguns subdominios de conteudo do portal.Não sei como isso se chama, por isso não consegui achar nada a respeito. Alguém sabe como se obtém esse tipo de resultado ? Digo no sentido técnico, se para isso eu preciso adicionar algum tipo de meta tag.Vasculhando na net, achei esse seguinte codigo num site:

<link rel="home" title="Home" href="http://www.avinode.com/avinode/AvinodePublicWeb/index.do" /> <link rel="section" title="Products" href="http://www.avinode.com/avinode/AvinodePublicWeb/pages/services.jsp" /> <link rel="subsection" title="Avinode Pax™ For Operators" href="http://www.avinode.com/avinode/AvinodePublicWeb/pages/avinodePaxOp.jsp" /> <link rel="subsection" title="Avinode Pax™ For Buyers" href="http://www.avinode.com/avinode/AvinodePublicWeb/pages/avinodePaxBr.jsp" /> <link rel="subsection" title="Avinode Link™ For Operators" href="http://www.avinode.com/avinode/AvinodePublicWeb/pages/avinodeLinkOp.jsp" /> <link rel="subsection" title="Avinode Link™ For Buyers" href="http://www.avinode.com/avinode/AvinodePublicWeb/pages/avinodeLinkBr.jsp" /> <link rel="subsection" title="Avinode Cargo™ For Operators" href="http://www.avinode.com/avinode/AvinodePublicWeb/pages/avinodeCargoOp.jsp" /> <link rel="subsection" title="Avinode Cargo™ For Buyers" href="http://www.avinode.com/avinode/AvinodePublicWeb/pages/avinodeCargoBr.jsp" /> <link rel="subsection" title="Avinode Quotation™" href="http://www.avinode.com/avinode/AvinodePublicWeb/pages/avinodeQuotation.jsp" /> <link rel="subsection" title="Avinode XML™" href="http://www.avinode.com/avinode/AvinodePublicWeb/pages/avinodeXML.jsp" /> <link rel="subsection" title="Avinode Statistics™" href="http://www.avinode.com/avinode/AvinodePublicWeb/pages/avinodeStatistics.jsp" /> <link rel="section" title="Avinode News™" href="http://www.avinode.com/avinode/AvinodePublicWeb/pages/avinodeNews.jsp" /> <link rel="section" title="Clients" href="http://www.avinode.com/avinode/AvinodePublicWeb/pages/clients.jsp" /> <link rel="subsection" title="Comments from Avinode Customers" href="http://www.avinode.com/avinode/AvinodePublicWeb/pages/clientComments.jsp" /> <link rel="section" title="Contact Avinode" href="http://www.avinode.com/avinode/AvinodePublicWeb/pages/contact.jsp" /> <link rel="contents" title="Sitemap" href="http://www.avinode.com/avinode/AvinodePublicWeb/sitemap.jsp" />

Esses itens section, subsection, etc...tem a ver com esse resultado de busca que relatei acima ?Valeu cambada !