Ant writes: "EGeezer's Broadband/DSL Reports forum thread mentions World Privacy Forum's top ten information collector/user list that shows opt out instructions (or at least a starting place): "As privacy experts, we are frequently asked about 'opting out,' and which opt outs we think are the most important. This list is a distillation of ideas for opting out that the World Privacy Forum has developed over the years from responding to those questions. The list below does not contain all opt outs that are available. Rather, it contains the opt outs that we believe are the most important and will be the most useful to the most consumers. Many people have told us that they think opting out is confusing. We agree. Opting out can range from the not-too-difficult (the FTC's Do Not Call list is a fairly simple opt out) to the challenging (the National Advertising Initiative (NAI) opt out can be tricky). Our hope is that this list will clarify which opt out does what, and how to go about opting out. In this list, some opt outs can be done by phone, some have to be sent in a letter via postal mail, and some can be accomplished online. Some opt outs last forever, some have time limits, and others can be changed at will. If an opt out is on this list, it is because we thought it might be important enough to be worth whatever annoyance it may pose. Not every opt out is right for everyone, and not everyone will necessarily want to opt out. It is a personal choice. Take a look at the list below, and see if any of the opt outs appeal to you, or might make a difference to you in some way. And if you know of an opt out that has been important to you that we didn't include here, please send us your personal 'top opt outs.' We'll consider them for the next revision of this list...""