Besides its free trial version, Refog offers two different options: the Keylogger and the Personal Monitor. The Keylogger records keystrokes, takes screenshots, and monitors the websites visited. The Personal Monitor is more inclusive - text copied to the clipboard is also recorded, and logs can be emailed to you. (An Employee Monitor with more features is supposed to be in development - stay tuned.)
Although both products are straight-forward and easy-to-use, emails cannot be monitored, only out-bound chat/messages can be recorded, and there are no filtering features. Also, in order to download the the free trial version, one must register, which takes time and requires entering one's email address. If these features are important to you, try the Perfect Keylogger!