There are some archived from the old fan site room509.net.
http://web.archive.org/web/20080530160230/http://room509.net/sr/frame.htmlClick the 'Articles' link on the right side of the page.
There are also a few interviews on her wikipedia page:
https://en.wikipedia.org/wiki/PJ_Harvey#Further_readingThe archives of the official site might also have some:
http://web.archive.org/web/20050818184212/http://www.pjharvey.net/You can go back and forth in time on archive.org by using the slider at the top of the page.