The dispute spawned an industry self-regulatory group that pledged not to link personally identifiable information to Web browsing unless the person opted in.

WSJ: They Know What You're Shopping For

We'll link through to allow the information on our Web site to your Web site.

NPR: Do Home Lead-Testing Kits Work?

Additional information and help is available online at IBM's Web site (link below).

CNN: Some Aptivas shipped with CIH virus

That means users don't need to reveal financial information themselves, only click on a link that directs them to a malware-infected Web page.

FORBES: Magazine Article

From these Web sites, users wanting to find information about Social Security need to know to click on the link to the Social Security Administration and then navigate SSA's Web site.

CNN: WebGov still suffers delays