Well, there is no foolproof way to do this. It is best to instill in him sound values and rely on these to guide his actions. After all, undesirable content is not merely limited to the Internet and it would do him a lot more good if he exercised self-restraint. Yet, if you'd rather have some controls in place, here's something that you could try out. Set the rating levels for the content that your browser can download, to suit your needs. If you use the Microsoft Internet Explorer, you could do so in the following manner.

Open your browser and click on "View". From the menu that pops up, select "Internet Options". Click on the "Content" tab and then select "Enable". The "Create Supervisor Password" dialog box is displayed. Enter a suitable password and confirm. Then, click on "Settings" on the "Internet Options" dialog box. The "Supervisor" dialog box appears and you would have to type your password to move further. The "Content Advisor" dialog box that pops up enables you to set appropriate limits to the level of profanity in language and to the extent of nudity, sex & violence that you wish to view. Once you have done so, only the rated sites that meet your criteria are displayed by your browser. The settings, of course, are password protected.

Having taken care of this problem, here's another that you need to think about. There are three people including you, who would be using the same computer for e-mail. Your ISP has already given you two e-mail accounts and you could get an additional one so that each of you could exclusively have one. But you've got just one mailbox in your "Outlook Express". Will it be possible for every one of you to have separate mailboxes as well? Of course, yes. This is how. From the "File" menu, choose "Identities" and click on "Add New Identity". Enter the name of the new user - your wife's or your son's. When you are asked if you wish to log on as the new user, say "yes" and you will be prompted for the necessary information.

The current identity is "default" and you could change its properties to make it your mailbox. You could do so, by clicking on "Manage Identities". Each user could choose to add a password, as well. There you are then, each of you can have separate messages, contacts and personal settings. You would have the default identity and so, it is your mailbox that would turn up every time any of you logs in. If your wife or your son wish to access their e-mail, they would have to switch identities. That, however, is only a minor inconvenience as compared to sifting through a common mailbox for one's mail or contact addresses. Besides, it also gives each one of you the desired level of privacy. Surely, you're entitled to that even at home.