Yahoo recently imposed a revenue cap on doman parking income on certain TLDs. TrafficZ reported that the affected TLDs “include .biz, .co, .info, .tv, and .us.” leaving open the possibility that other TLDs might also be capped. According to TrafficZ on 8/16:
The new, conservative revenue cap was rolled out early this morning and will be imposed on a per domain, per day basis. Specifically, if a particular domain in one of the above-referenced TLDs exceeds the revenue cap on any given day, Yahoo! listings will cease to be displayed on that domain for the following three days, at which point they will resume displaying as normal.This change was made across the board and will affect all Yahoo! partners.
In a follow-up email they clarified that:
Yahoo! is just one of many advertising partners that TrafficZ works with to monetize your domains and traffic. And although Yahoo! may have imposed a cap on certain TLDs, TrafficZ will continue to monetize all high quality domains and traffic through our multiple advertising partners, regardless of TLD, revenue and/or volume.
Furthermore, TrafficZ clients with exceptional .INFO, .US, .TV, .BIZ and/or .CO domains should submit them to our account team for further review. Where appropriate, TrafficZ will work with Yahoo! to have revenue cap limits raised or removed from qualified domains, regardless of TLD.