Has Google redesigned the header of its results page (for the worse)?
Update: They came back for me at about 8 or 9pm tonight ... So hopefully it's a glitch that's fixed - which seems to be the suggestion in this google forum (one of many): "If anyone is still experiencing this problem, Google is aware of it and they are working on it."
Maybe it's a test. But Google seems to have redesigned the header section of its results page, removing the links to other types of search (web, images, news, blogs etc) and removing the ability to sign in.
I might not be a typical user, but this seems a change for the worse for me - if you search for [keyword] and then decide you want to search just blogs or just news, there's no easy way to do it (although you can narrow it down to videos, forums or reviews in the 'show options' button, there aren't options for web, maps, news, blogs etc). See below for some other people's experiences.
The old header
The old header is still showing for Google News (and on the Google home page).
The new header
Here's how it looks now, with the links in the top left and right gone.