Jane Darnell, 11/07/2013 09:15:
Hmm, This one really has me stumped: http://stats.grok.se/en/latest90/Yahoo! That is not a wikibump, but some sort of structural thing. The only thing I can think of is that some sort of popular band, manga character, or porn queen in China has been named Yahoo!
Or someone (e.g. Yahoo!) has linked it from some prominent webpage (but only in English? other languages seem not affected) or some stocks holder (e.g. Yahoo!) is running simple "crwalers" to skew pageviews stats and make them appear flat so that nobody can make stocks value forecasts using them.
Nemo