text: Additional information about individual opt-out programs is available on the World Privacy Forum website at http://www.worldprivacyforum.org. In addition to visiting the websites of each of the vendors listed above, you may opt out of certain targeted advertising by multiple third-party advertising networks at one time if they belong to the Network Advertising Initiative or the Digital Advertising Alliance. Visit the Network Advertising Initiative's website at http://www.networkadvertising.org/managing/opt_out.asp to select the applicable networks.