Abstract Many universities rapidly transitioned to online instruction in the spring of 2020, and content providers responded by offering temporary free access to a wide range of sources. Despite having no direct cost, free access comes with several hidden costs, including the staff time used to manage temporary access. With many campuses expecting online instruction to continue at least through the end of the year, teaching faculty and library staff now have to build solutions for online learning without the resources that got them through the spring. While transitioning to Open Educational Resources and Open Access publications may take a large effort upfront to redesign courses and workflows, being able to rely on permanent access would be a significant advantage.

中文翻译：

---

临时免费访问

摘要 许多大学在 2020 年春季迅速过渡到在线教学，内容提供商通过提供对广泛资源的临时免费访问来做出回应。尽管没有直接成本，但免费访问会带来一些隐藏成本，包括用于管理临时访问的员工时间。由于许多校园希望在线教学至少持续到年底，教师和图书馆工作人员现在必须为在线学习构建解决方案，而没有让他们度过春季的资源。虽然过渡到开放教育资源和开放获取出版物可能需要大量的前期工作来重新设计课程和工作流程，但能够依赖永久访问将是一个显着的优势。