Dan Rogers (@danjrog) posted a thread at WebmasterWorld showing a weird bug in Google.
It isn't often where you'd see a search result show up in Google without a title to click on. But he spotted one for a search on keyword tool, which returns a google.com URL. I was not able to replicate it, but he provided a picture:
He said he has this issue on Minefield (Firefox 4.0b8pre) while searching in the UK. It is likely a browser bug and not a Google bug, but I thought it was cool enough to show.
Forum discussion at WebmasterWorld.


Comments:
Brian McDowell
11/30/2010 06:44 pm
I find it interesting that the missing titles are from Google generated page titles. I noticed this issue happened at the beginning of October (late September) 2010 where Google would take liberties in changing or generating page titles for specific pages. These changes were strictly at the query level. In other words different search queries for the same landing page would display either the Title provided in the HTML or a hybrid of the domain homepage title appended on an internel anchor text specific phrase. It is possible that Google was trying to scale it back or was playing with the logic.