Here's there post
Sitelinks data refresh. [launch codename "Saralee-76"] Sitelinks (the links that appear
beneath some search results and link deeper into the respective site) are generated in
part by an offline process that analyzes site structure and other data to determine the
most relevant links to show users. We've recently updated the data through our offline
process. These updates happen frequently (on the order of weeks).
The above is probably fine for all of us . . .
Better indexing of profile pages. [launch codename "Prof-2"] This change improves the
comprehensiveness of public profile pages in our index from more than two-hundred
This one actually may help us . . .
High-quality sites algorithm data update and freshness improvements. [launch codename
"mm", project codename "Panda"] Like many of the changes we make, aspects of our high-
quality sites algorithm depend on processing that's done offline and pushed on a periodic cycle.
In the past month, we've pushed updated data for "Panda," We've also made improvements to
keep our database fresher overall.
This one is going to HURT . . .
Tweaks to handling of anchor text. [launch codename "PC"] This month we turned off a
classifier related to anchor text (the visible text appearing in links). Our experimental data
suggested that other methods of anchor processing had greater success, so turning off this
component made our scoring cleaner and more robust.
This always has 'collateral' damange - they mess with more sites then they planned . . .