Outline the responsibilities for daily, weekly, monthly, quarterly, and yearly efforts. Developing new content on a regular basis for different channels is especially important.
Layout strategic projects for the year in broad brush form (save the details for separate documents).
Articulate the goals and metrics for macro-level items like monthly traffic, leads, Twitter followers as well as more precise goals for different initiatives.
Make a Google Spreadsheet detailing the different line item costs on a monthly basis for the year.
This simple approach helps get different team members on the same page and provides a guide for the new year.
What else? What are some other items to add to the B2B marketing plan for startups?