Google is focusing on accessibility of Open Data - European Data Portal

Google launched a new type of search engine designed specifically around helping people find Open Data. Called “Dataset Search”, the tool provides access to datasets across data repositories on the web. Like in the general search function, the algorithms that determine which information and sources are selected and prioritised stays unrevealed. However, markup requirements explain that the search engine is discovering datasets that use schema.org Dataset markup or equivalent structures represented in W3C's Data Catalog Vocabulary (DCAT) format. On an experimental level, structured data based on W3C CSVW is found as well. More details on how Google facilitates discovery can be found in their blog.