FeedBurner was acquired by Google last year, prior to the acquisition, premium services of Feedburner were on paid subscribtion basis, until Google announced that along with the acquisition of Feedburner is a planned move to offer the premium services for free.
LouisGray, points out that last week:
“Feedburner quietly turned off the ability to view all-time statistics for individual feeds at the end of last week, erasing years of accumulated data, without any explanation. Now, instead of seeing options for "One Day", "Last 7 Days", "Last 30 Days" and "All-Time", feed owners can only see statistics over the last 30 days at maximum, and it doesn't look like there is an "Pro" version that lets us get them back.”
So, what's the big deal? The big deal is bloggers that have relied on FeedBurner for any good length of time just lost all access to historical data. We can no longer see how our RSS subscriber growth rates are changing over time. We can no longer see accumulative statistics for click-throughs to popular articles, and and we can no longer show when our feeds reached specific milestones.
And FeedBurner remains silent. Their official blog hasn't been updated since November of 2007, and as customers beg for an explanation in the site's support forums, there hasn't been any response.
Google, FeedBurner, RSS, Feeds, Statistics, Stats