garyr_h - 4:23 pm on Apr 1, 2012 (gmt 0)
@Zivush, if you read back through the thread a little bit you'll notice that we have been relaying changes virtually every day, especially with long-tail but also some others overall.
If your site relies on long-tail, you'll probably see some huge fluctuations depending on the day. I saw some large change on the 30th and 31st as well, but it wasn't Panda. I believe it is just them pushing buttons like they have been all through March.
EDIT: Definitely seeing a huge mess right now. Is this what G was talking about when mentioning they want non-SEO sites to get more attention? Because it looks like tumblr and other blogs are getting quite a bit. Also, non-US sites showing up all over the place for .com. Never saw it to this extent before. Of course, the ones which are showing up are blogs.