Google RealTime Team had sent this below update.
We've temporarily disabled google.com/realtime. We're exploring how to incorporate Google+ into this functionality, so stay tuned.
Now, Google is saying that Google Realtime Search Goes Offline as Deal With Twitter Expires.
SearchEngineLand had reported that it got below explanation from Google.
Since October of 2009, we have had an agreement with Twitter to include their updates in our search results through a special feed, and that agreement expired on July 2.
While we will not have access to this special feed from Twitter, information on Twitter that’s publicly available to our crawlers will still be searchable and discoverable on Google.
And, Twitter had sent below explanation.
Since October 2009, Twitter has provided Google with the stream of public tweets for incorporation into their real-time search product and other uses. That agreement has now expired. We continue to provide this type of access to Microsoft, Yahoo!, NTT Docomo, Yahoo! Japan and dozens of other smaller developers. And, we work with Google in many other ways.
In any case, we can see the Google+ updates in Google Realtime Search soon.
And, "Google Wonder Wheel" has been taken offline.
You can subscribe to our Email posts, and you can bookmark this blog for further reading, or you can subscribe to our blog feed.