CERN is holding a seminar right now for the latest results for the ATLAS and CMS Higgs searches, webcast live: http://cern.ch/webcast or alternative webcast.

Higgs Seminar liveblog from CERN:

“17:50: We have observed a new boson with a mass of 125.3 +- 0.6 GeV at 4.9 sigma significance. Enthusiastic applause heard on two continents.”