"Finally, Carbiz, InZon, and IQ Micro, Inc., ignor ed the proceeding totally, and Princeton Media only appeared at the prehearing conference. Accord ingly, there is no evidence that these Respondents have made any efforts to remedy past violations and ensure future compliance, or have made credible efforts against further violations. I conclude on thes e facts that it is both necessary and appropriate for the protection of investors to revoke the re gistration of their registered securities."