北京SEO-星箭

Ever since Update Jagger, which prepared the way for Google's new Big Daddy infrastructure, the changes and shifts to the SERPs come so frequently that we haven't called an Update in over a year. Instead, we've been trying to watch the SERP changes in an ongoing, monthly thread that shifts with the irregular roll, pitch and yaw of the good ship Google.

But something quite major is now going on with the Google SERPs. Members are reporting major changes in the single word search results, most particularly, but lots of other things are stirred up as well. On one of my single keywords, I've just passed wikipedia (yeah!) and jdMorgan reported the same for one of his keywords.

So it's time -- we are officially declaring Update Buffy. We'll begin with recent posts from our June SERPs Watching thread. What do you see going on?

So why name it Buffy? Let's say it's in honor of someone who just left her job but knows a whole lot about Buffy the Vampire Slayer.
We've never gone with someone's formal name for an update. Tip of the hat to reseller, goodroi, and jdmorgan for their input.

further note - Matt Cutts says that in his mind this is not an update. OK - so we'll call this moment an "Honorary Update".

来源：http://www.webmasterworld.com/google/3370555.htm
中文：这似乎是google今年来最大规模的一次更新，不过matt cutts说不是更新。