Sometimes, there is not a disciplinary repository for your data, or if there is, then it may have requirements for data set deposits that your data cannot meet - such as requirements in size, format, documentation, etc. In such a case, consider depositing your data to ScholarSphere, Penn State's institutional repository. ScholarSphere takes any file format, and there is no maximum amount of data that users can deposit (although there are upload maximums because deposit occurs via the Web).
As Andrew Stephenson describes it, ScholarSphere is a time saver as well.
ScholarSphere is a self-deposit repository service ensuring the long-time preservation of data for ongoing access. No registration or creation of an account is necessary. The service is available to anyone in the Penn State community to use - all that is required is a current Web Access ID.
To learn more about ScholarSphere, visit its Help page.