A WebmasterWorld thread has people taking notice of the ranking changes as of last night after 6pm EDT
Some history on Panda. Panda was released in February then Panda 2.0, the international rollout, hit in April and then Panda 2.1 was rolled out in May. So June is a nice time for Panda 2.2 or 3.0 - did you notice any changes? Will this result in sites finally recovering from Panda?
Google is updating its software again and again after taking feedbacks from webmasters. I think Google will keep working on it so refine the best search results on top.
It seems Google is now very strict towards those who were going on unethical way. So, it prevents them now from Google Panda, just knew about the panda in Feb.
Yes, now Google has became very strict in diluting the low quality and duplicate content sites with its Panda Update. And it started to give more importance Guest Blogging and Link Baiting i think.