On the heels of Charter's decision last week to suspend their use of NebuAD user tracking ad technology, I'm seeing hints that CenturyTel may be doing the same thing. In addition to reworking their privacy page, the company is e-mailing customers who ask to inform them that plans to implement the gear have been "delayed." Carriers are concerned after Congress showed hints they could be investigating the technology because it potentially violates several Federal wiretap and privacy laws. From an e-mail to a subscriber:Of course, an employee at one ISP tells me NebuAD is promising ISPs that they're developing a new opt-out system that is IP-address based. The current cookie-based system only stops targeted ad delivery; it doesn't opt the user out of browsing tracking (potentially running afoul of three laws). Should NebuAD's new opt-out mechanism please Congress (something I'm sure lobbyists are already working on), you will see these plans revisited.