As you can see from the screen capture, Google News has a link that reads, “Subscribe to a news feed for [query] in Google Reader.” I personally do not see this option on my news or blog searches but this reader did.
Hat tip Googlaxy.com.
Postscript From Danny: I see the link in a search for photo awards and other queries. To make it appear, I believe you have to be (1) subscribed to Google Reader and (2) logged in to your Google Account that uses Google Reader. If so, Google sees you use Google Reader and so adds the extra suggestion.