Active Rain and the Speed of BOT

I for one am always amazed how fast some website get crawled by the search engine bots.  I use Google Alerts to notify of many different words and phrase.  I posted a new Blog last night and the time stamp between here and my email was only 50 minutes.  That is very fast and many of my Blogs on ActiveRain have been indexed in less than 90 minutes.  Just goes to show you how popular Activerain is and how many links there are here.