Google Real Time Search adds more sources

According to Search Engine Land, the list is now as follows:

• Twitter tweets
• Google News links
• Google Blog Search links
• Newly created web pages
• Freshly updated web pages
• FriendFeed updates
• Jaiku updates
• Identi.ca updates
• TwitArmy updates
• Google Buzz posts
• MySpace updates
• Facebook fan page updates
• Quora
• Gowolla
• Plixi
• Me2day
• Twitgoo

How will they impact SEO?