It looks like Google is testing some changes to the Adwords Keyword Tool.
Saw some glimpses of one of those "type in the picture characters so we know you are a human" boxes in the space between the "Use synomyns" check box and the "Filter my results" link.
That could slow down keyword research a bit.
nutkenz
7:57 am on Jan 12, 2009 (gmt 0)
A CAPTCHA? That's been in the public version for a long time already.