Last Thursday DeMarc announced its acquisition of the Sentaurus IDS from Silicon Defense. In June I listed various companies selling Snort-based IDS appliances. It looks like Silicon Defense's support for its Windows version of Snort continues at WinSnort.com. This appears to be different from the binaries available at Snort.org. (I didn't check the WinSnort version because downloads there require registration.) DeMarc was famous for its GUI for Snort alerts, which no longer appears as a Snort add-on. However, it's now called PureSecure Personal and is free for "home use." Downloading it requires registration.