Versity.com is "piloting ways of contacting professors" in the "least-intrusive ways," she added.

"It's unfortunate we caused such an uproar," she said.

Cardinell said that the majority of professors do not respond to mass mailings sent out by Versity.com. But five to seven percent of professors express concern that their intellectual property will be jeopardized.

She said that in this case Versity.com is "willing to block a set of notes or a guest lecture."

On the other hand, Cardinell said 10 to 12 percent of professors "really embrace the idea" and "understand how technology is changing education."

"Some professors have even used mistakes in notes to clarify their own lectures," she said.

The Internet company designates and trains one note taker per class in an hour-long online tutorial and employs quality monitors to look over the notes.

Though Harvard University is listed as an option on Versity.com's website, there are no Harvard course notes on the site. Cardinell said that the company was not operating on Harvard's campus.