It is widely known fact that Google’s new Caffeine update is ready to go live. Matt Cutts announced at PubCon that they will launch it after the holidays season in US. He confirmed that caffeine can be accessed using 18.104.22.168 (50% of the requests).
From what we have gathered, it seems like it is live in India. At least the data centers our team members have checked.
Over the weekend, I noticed that emails from Google Alerts increased 5 folds for the keywords I have set alerts. I have subscribed to these alerts for a few years now and generally get 2-3 emails a per day per alert. Yesterday I received about 12 emails per alert. This leads me to believe that Google has switched the backend for alerts from current Google to Caffeine update. Caffeine has bigger index for all the websites we have looked at. This may just be a temporary bump as Caffeine is “catching up” with sending alerts for pages which current Google has not been able to find yet. Has anyone else noticed this?