A few months ago, the research pane was added to Docs to make it easier for you to search for and add web results, images, quotations, maps, and articles to your document. Starting today, the research pane is also available in Slides and Drawings, and searches now include your stuff in addition to web results.

With the research pane, you can now quickly find and use your stuff: include part of a presentation stored in Drive, insert an image from your Picasa albums, or grab a quote from a friend’s Google+ post. (Google Apps customers will only see web results in their research panes.)
(Previewing and inserting a spreadsheet from Google Drive) 

 Posted by: Vivek Agarwal, Software Engineer