Symantec last week continued to strengthen its family of security software by buying ON Technology, a maker of remote PC management technology, for $100 million. ON is a publicly traded company that makes products designed to help network administrators inventory and manage desktop computers, servers and mobile devices on LANs and WANs.

Symantec will use ON's technology to enhance its enterprise security administration product line, with the goal of giving Symantec customers the ability to spot and patch security holes in their computer network, Symantec says. The purchase will help the company compete against Microsoft and other large companies that have an interest in network device management.

Sonic Foundry this week is scheduled to unveil updates to its Mediasite Live line of self-contained appliances that combine audio/video feeds with output from a PC (slides, documents, Web pages) into a live or on-demand Webcast.

New to this release is a Windows-based administration console for centrally managing multiple Mediasite appliances and a category manager to help content creators better organize Webcasts they create.

Mediasite Live comes in a rack-mount or portable version with a starting price of $25,000.