Maru is going against TY in the upcoming GSL final. This post discusses the general framework Maru uses in the TvT match up.
There were many top level Terran matches recently. These games provide a good snapshot of the current trends.
ByuN played his first GSL game yesterday since his return from the military service. This post discusses the Engineering Bay block expand opening that he used multiple times against his Protoss opponents.
There are some interesting trends in the Terran versus Protoss match up. This post discusses some noteworthy shift in the metagame over the last few months.