While I noticed the spikes around Google Fusion Table posting inspired by/referred to James Fee's two blogs, stats show Google and Ed Parson's produced the next highest spike. And I always wondered why British Roundabouts scored high but it's from Search Keywords.
Also of interest was the geographic distribution as a blend of their readership (US and UK, respectively) and mine (N America, Europe incl. Russia and Australia).
For my Canadian friends I don't know Harper but I do like Yo Yo Ma