What is the value of standardized metadata (e.g. OAI-PMH, IEEE-LOM, Dublin Core) in the days of search engines? Sites that offer open data (e.g. Open Educational Resources), want their content to be found and used. Often emphasis is put on including correct standardized metadata to this aim. These enable repository harvesting services, such as Jisc's store, Europeana, etc. to find the data.
But I never see one of my students lookup something at such a service, neither do I do myself. Everyone looks up with a search engine, such as Google. Google (or another search-engine) is the default start of a web-look-up. Specific look-up services are only used for specific subjects (e.g. finding flights, hotels, public transport travel information, second hand goods, scientifical publications, etc.), for all the rest generic search engines are used.
That leaves me with the question 'how important are standardized metadata nowadays'? Isn't search engine optimization with good descriptions and titles, meaningful URLs etc. more important nowadays?