Google quietly announced a new file-sharing feature for Google Drive. When you're using Google Drive on a Mac or PC, you can now share with a right click from the Google Drive folder.
Google said in a brief update on its Google Drive Google+ page, "For those looking to share files more quickly, listen up. You can now share with others directly from the Google Drive folder on your Mac or PC. To share a file while inside your Google Drive folder, simply right click the file, select 'Google Drive' and then click 'Share.' This new feature is rolling out over the next few days."
Google has made Drive a lot more helpful to users in recent months. One of the greatest examples of this is the addition of files to regular web search results pages (if you're in the pilot program).
In February, Google added a file preview feature to Google Drive. We've also seen indications that Google Drive will get Gmail attachments.
If you're a developer looking to learn how to make searchable Google Drive files, watch this video.