from Mike Mullins - TechRepublic...
Keystroke loggers are a particularly dangerous security threat because users typically don’t realize they’re even there...
Most antivirus and antispyware programs will miss software keystroke loggers, so how can you protect against these sneaky devices? Fortunately, there are some programs designed for this specific task. For example, SpyCop and SnoopFree Software are both software programs specifically designed to detect software keystroke loggers...
For a comprehensive list of keystroke loggers, Keyloggers.com maintains an updated list of both hardware and software versions sold by a multitude of companies. (more)