Here's the latest batch of Google updates, which got rolled out in March.
Google Search Updates
There's a lot of techno babble, and nothing really stands out this time, but it looks like emphasis is continuing on "freshness" ie updated web content, so get your pages updated!
I've got to be honest though, it does give an insight to the average behind the scenes Googler if you look at some of the project names and descriptions...
My personal favourite:
Simplification to Images Universal codebase. [launch codename "Galactic Center"] We
