Political advertising data may go online

Political TV commercials may be notable in the coming election not for the attack ads or the penchant to go negative but for a new level of transparency regulators are considering to shed light on who is buying the ads and how much they pay.

The Federal Communications Commission is expected to vote Thursday on a notice of proposed rule making that could require broadcasters to post information about political ads and other data on the Internet. Broadcasters have long been required to keep such data in a “public file,” but the paperwork is usually available only to people who trek down to their local station and take a look.