“Material Excursions” teases two questions. How does the general mobility and flexibility of late capitalism, increased—if not inaugurated—by cloud computing, leave material traces? And, given romantic poetry's preoccupation with clouds, how does romantic poetry, specifically the poetry of William Wordsworth, help us to think the material traces of cloud computing and the knowledge economy differently? The essay draws from the accidental convergence of Apple’s rhetoric surrounding iCloud and Wordsworth’s “I wandered lonely as a cloud.”