I cleared out my Google Web History and noticed that the 'Interesting Items' link still has data? How soon does that data disappear? The 'Trends' link cleared out immediately as it should but not the 'Interesting Items' section.

P.S.
This same topic was posted by a forum member some time ago but looks like he received no replies.
(That thread is old and now locked, so I have re-submitted it again here.)

Same here. Don't have any clue.