Generally, NebuAd provided an additional income stream to network operators, which may maintain or lower consumers' Internet access bills. Better targeted advertising also leads to a more relevant and personalized online experienceadvertising. Critics believe that the raw content of their internet communications are entrusted to the ISP for handling without being inspected or modified, not for sale.<ref>{{cite web | title=CDT Urges Stronger Guidelines for Behavioral Advertising| url=http://www.cdt.org/headlines/1126 |date=2008-06-12 |accessdate=2008-06-19}} {{Dead link|date=October 2010|bot=H3llBot}}</ref> Privacy advocates criticize the lack of disclosure<ref>{{ cite web | url=http://www.dslreports.com/shownews/Wide-Open-West-Using-NebuAD-92520 | date=2008-03-11 | title=Wide Open West Using NebuAD Users don't get much of a heads up... }}</ref> that some ISPs provided prior to using NebuAd, a weak opt-out method<ref name="opt-out" />, the lack of oversight over what any third-party company does with the contents of Internet communications<ref>{{cite web |url=http://www.dslreports.com/forum/r20600537-ISP-Data-Collection-Congress-Investigation-Urged-NebuAd |title=ISP Data Collection — Congress Investigation Urged (NebuAd-CDT Press Release) |accessdate=2008-06-20 |date=2008-06-06 }}</ref>, its conflicts with United States wiretap laws<ref name="opt-out" /><ref name="infighting" />, and the company's refusal to name its partner ISPs.
