The Google Anti-Malware engineering team, which is responsible for the "This site may harm your computer" warning you see with some sites in Google search, is going taking questions regarding to their scanning and flagging of such warnings. If you have any questions, you can head over to the Google Moderator Page they have created for this purpose and submit them.

Remember, however, that they are expecting complex questions which are not properly adressed in the forum. The submission closes on 28th August and some top rated questions, based of the votes, will be selected and answered in details and published in the Google Online Security Blog and the Webmaster Malware Forum.

via Google Online Security Blog