Google’s indexing of the updatesphere is going quite well with the recent news that it will soon show all tweets going back to March 21, 2006. However, there seems to be a very basic flaw in its search design: it returns the platform name for a query! So if I search for Google it will include Google Buzz and if I search for Twitter it will return everything posted from Twitter.
I can imagine a finegrained search similar to “Google” site:http://awebsitehere.com that would allow you so specify within which platform you would like to search. A search query would then look like this: “Google” platform:Twitter or “iranrevolution” platform:FriendFeed.
Just a thought.