(Update. Google doesn't necessarily index web pages as soon as they're published, but the sites that use feeds or sitemaps are indexed pretty fast. With recent advancements like PubSubHubbub that provide real-time notifications for updates, the delay between publishing pages and finding them using Google will be further reduced.)
Click on "show options", select "past 24 hours" and tweak the URL by replacing "tbs=qdr:d" with "tbs=qdr:n" to find pages indexed in the past minute.
Example: a search for [Tiger Woods] restricted to almost real-time results.
The date restriction feature is quite flexible, but you need to know the syntax used by Google's URLs:
tbs=qdr:[name][value]
where [name] can be one of these values: s (second), n (minute), h (hour), d (day), w (week), m (month), y (year), while [value] is a number.
To find the web pages indexed less than 45 seconds ago that include the word "flu", use this URL:
http://www.google.com/search?q=flu&tbs=qdr:s45
Unfortunately, if you restrict the results to very recent web pages, Google shows a small sample and doesn't list all the results.
{ Thanks, Ran. }
