The design of assignments, that is, the actions required to complete them, shapes the learning that results. We know this, but do we make the most of what we know when we design and select assignments? I’ll try to make the point with writing assignments. We have come a long ways since the days when term papers were the gold standard of writing assignments. Paper options now include authentic assignments that approximate professional writing tasks. The Writing-Across-the-Curriculum movement has introduced us to low-stakes writing activities from students jotting down a few ideas before they speak, to free writing that starts the flow of ideas, to journals that encourage personal connections with course materials. Technology adds still more assignment design options. Students can blog and respond to posts; they can write collaboratively on wikis and Google Docs. The options are many, but the features of each writing assignment directly shape the learning that results.