Wikipedia does have errors, but it's a good place to start if you're trying to understand something:
http://en.wikipedia.org/wiki/Speed_of_gravity#Possible_experimental_measurements
"In December 2012, a research team in China announced that it had produced findings which seem to prove that the speed of gravity is equal to the speed of light. The team's findings were due to be released in a journal in 2013."[26][27]
27 Jan 2013, 9:22 pm
