Google Realtime Search, the once company-lauded realtime search index featuring tweets and as-it-happens updates, is temporarily defunct.
The realtime search option has disappeared from the search results sidebar, and the standalone Google.com/realtime product returns a 404 error page.
Realtime search was suspended after Google’s contract with Twitter for access to the full feed of public updates passed its expiration date on July 2, 2011, according to information Google shared with Search Engine Land. The original Twitter search agreement dates back to October 2009.
Read more at Mashable