Can't see why this would be useful from a UI point of view, so assuming it must be a bug...
8:27 pm on Nov 29, 2010 (gmt 0)
Got to be a bug. I see the titles.
12:24 pm on Nov 30, 2010 (gmt 0)
i defer to rustybrick in these matters :) he does a great job keeping up to date on changes
6:52 pm on Nov 30, 2010 (gmt 0)
It doesn't make sense that it would be anything but a bug. The pages without links are both Google properties... the US and the UK versions of the Google Adwords Keyword Tool. We could perhaps get a conspiracy theory going if they were competing tools.
Probably more a glitch than a bug. I've tried the search several times in different browsers and haven't been able to reproduce the problem. From the screenshot it appears that you're logged in with search history enabled, though I don't see what that might have to do with it... unless you've shown a strong preference for clicking on results without links. ;)
5:23 pm on Dec 7, 2010 (gmt 0)
i just reproduced this and figured out what was causing it - adblocker plugin. that cant be a good thing for adblocker to be suppressing organic serp listings.
6:58 pm on Dec 7, 2010 (gmt 0)
half of the serps are ads these days... for google's own products.