Google's feedburner is one of the top web feed management provider which also offers RSS to Email feed distribution service, the usually "blue" "readers count" chicklet is a common citing around the blogosphere. The chicklet not only allows users to subscribe for blog updates by various means, but also provides a social-metric to how popular a blog is. We proudly have 305,000+ subscribers via feedburner but if you have noticed the "feedburner readers" count chicklet all across the web are now showing the count as zero.
This widespread data display issue is now publicly acknowledged by Google with the following update on Google feedburner's official blog.
Having a big Feedburner subscriber count is one thing every blogger wants to flaunt about, but this subscriber count can be manipulated, the guys at TheNextWeb.org posted a simple hack on how to increase your Feedburner subscriber count overnight using multiple subscription to the same feed on Netvibes, the flaw seems to have been fixed by NetVibes/FeedBurner and to my surprise a couple of Tech sites I subscribed to lost their feedburner subscriber count heavily.
UPDATE: The hack seems to work again, the test site at http://www.joopdorresteijn.com/ is showing 3737 feed readers.