According to a study by marketing research firm RelevantView, only 36% thought better of Hillary Clinton based on her campaign site, MediaPost By contrast, more than half of folks who visited the Web sites of Barack Obama, Mike Huckabee and Ron Paul had a more favorable view of the presidential candidates after viewing their sites, the report said.

John McCain finished somewhere in the middle, with 44% improving their view of him after visiting his site. This study is particularly notable given the recent surge in Internet and mobile political ad campaigns.