- Google's first Panda update was on Apr 27th, with a subsequent update on June 8th.
- Less than 1% of queries worldwide will be affected, as of June 25th.
- For all things Panda, the best resource is Search Engine Marketing's Panda page.
Tweet from @google:
"Heads up: we're pushing a new Panda data refresh that noticeably affects only ~1% of queries worldwide. More context: http://goo.gl/HNvCt"
