As of late there's been two major protests that made it to Western media channels... check out this video from CNN HK/Beijing.
1) Wukan (near Sua:bhuè 汕尾) - Townspeople claim that a protest leader died of torture. Government officials claim he died of a heart attack. I'm not clear on why the original protest happened.
2) Haimen (near Dio:'iō: 潮陽) - Townspeople (30,000!) gathered to protest a current AND a new planned coal powerplant. Apparently the gov't has backed down on this second one. Go Haimen people!
I'm glad that Diosua: people are fighting against corruption and attacks on the local environment. Protest in Teochew is kàngngì 抗議。