The brief is understood to focus on how it can make its content available via channels such as blogs, mobile phones and podcasting.
The process is being led by Shiona McDougall, the newly appointed group marketing director at HarperCollins. A decision is expected within the next few weeks.
McDougall has worked as the marketing director for Virgin Wines Online and, most recently, at Agency.com.
Harper Collins has also appointed Clive Malcher as its first digital publisher, with responsibility for building a digital business, looking at content acquisitions and extensions and exploring new business models.