Wondering what to do with yourself (as a chess fan!) in the period between the now-completed Tal Memorial and the London Chess Classic? Fear not: the World Cup is underway! Participants include practically every strong GM rated below 2760, including Gelfand, Gashimov, Svidler, Morozevich, Radjabov, Ivanchuk, Ponomariov, Grischuk, Jakovenko, Wang Yue, Eljanov, Karjakin, Mamedyarov and Shirov.
In the American contingent there's Kamsky, Onischuk, Ehlvest, Shabalov, Shulman, Akobian, Ivanov, Friedel, Robson and Hess. (Hmm, notice any big absences?)
There are 128 players in this massive event taking place in Khanty-Mansisk, and it's run on the same knockout system as the last one (won by Kamsky, who beat Shirov in the final) and on the old FIDE knockout championships too, for that matter. Unlike the FIDE championships, however, the winner of this is not world champion, but achieves a spot in the Candidates' matches. Much more info, including complete pairings and the live games in progress, here.