Earthlink introduces a new security system today that it claims will stop most malware before you even know it's a problem. But there's some concern it'll destroy good programs too, Janet Babin reports.

Microsoft allegedly offered to pay a software engineer to edit entries in the open-source Web encyclopedia Wikipedia. But is that a problem in a medium that, by definition, anyone can contribute to? Steve Tripoli reports.

Some scientists and educators are using blogs as a tool to communicate their findings and research. They're hoping, among other things, to get people excited about science. Janet Babin reports.

A utility's plan to build coal-fired power plants across Texas has run into opposition from a group of environmentalists, mayors and CEOs. Two national groups joined in today with an alternative. Sarah Gardner reports.