The National Endowment for the Humanities has issued guidelines for its 2008 digital humanities start-up grants.
Here's an excerpt:
Two levels of awards will be made in this program. Level I awards are small grants designed to fund brainstorming sessions, workshops, early alpha-level prototypes, and initial planning. Level II awards are larger grants that can be used for more fully-formed projects that are ready to start the first stage of implementation or the creation of working prototypes. Applicants must state in their narrative which funding level they seek. The Endowment will be setting aside funds for each of the two levels and more awards will be made in the Level I category. Applicants should carefully choose the funding level appropriate to the needs of the proposed project. See the section on Awards for more details.
Digital Humanities Start-Up Grants support full-time or part-time activities for periods up to eighteen months. Support is available for various combinations of scholars, consultants, and research assistants; project-related travel; and technical support and services. Up to 20% of the total grant may also be used for the acquisition of computing hardware and software. All grantees are expected to communicate the results of their work to appropriate scholarly and public audiences. In order to facilitate dissemination and the maximum usage of the projects that are ultimately developed through the Digital Humanities Start-Up Grants, applicants are strongly encouraged to base their projects on open source and fully accessible software.