Google has made some of their "most significant enhancements to date" to Google Realtime Search and released them today. Initially launched in December, Realtime Search strives to bring the most up to date real-time content to searches.
First off, Realtime Search has its own website at http://www.google.com/realtime. The new homepage sports new tools, including geographic refinements for local results, a "conversations view" to follow discussions from sources like Twitter, and updates to Google Alerts in case you want to be informed about future information and new search results. Realtime Search and updates are available in 40 languages, while geographic refinements and conversations views are only available in English, Japanese, Russian and Spanish.