Landing pages are often utilized for lead generation and conversion. They are stripped down of unnecessary navigation and distraction and optimized to elicit an action for a user such as the submission of a form. But landing pages can be used for a variety of other purposes.
Landing pages can be used in cases where you want to accomplish a single specific goal.
One instance is in attracting applicants and applying for job openings. Brad Tiller of Unbounce described how they do not accept resumes but instead ask applicants to build landing pages to convey information about themselves that might not exist in traditional resumes.
Other uses include:
Read The Weird and Wonderful Ways to Use Landing Pages by Brad Tiller for more information on each of these uses.