Woeser's blogs _ http://oser.tibetcul.net/ and http://blog.daqi.com/weise/ had displayed her poetry and essays, along with work by her husband, independent writer, Wang Lixiong.
Attempts to connect to the blogs on Tuesday were returned with a message saying they did not exist.
One of the blogs' host site, daqi.com, could not be accessed either. The site is one of a number of online forums for discussion of Tibetan culture in Chinese that have recently sprung up, according to the AP.
The closure of the blogs appeared to be a further attempt to silence Woeser, who goes by just one name.
Her collection of travel stories, "Notes on Tibet," was banned in 2003, reportedly because it deviated from the official government take on Tibetan history and culture. Woeser was subsequently fired from her editing job at a government-backed journal and forced to leave her home in Tibet's capital, Lhasa.