Several readers have written in about the death threats and threats of sexual harm that have been directed at tech blogger Kathy Sierra. She is the author of a number of books about Java and a popular speaker at conferences. She has now stopped blogging and cancelled her appearance at eTech. She names the names of four prominent bloggers who are backers of two sites on which the threats were posted. Others in the blogosphere like Robert Scoble and Tim Bray have posted publicly in support of Sierra. Scoble in particular emphasizes the streak of misogyny that is still all too evident in the tech world. The Washington Post is also grappling with the issue of vile comment posts that flirt with illegality. One commenter on Bray's post summed it up: "The Internet used to be a university. Then it became a shopping mall. But now, it's a war zone."