有道云笔记是网易旗下专注办公提效的笔记软件，支持多端同步，用户可以随时随地对线上资料进行编辑、分享以及协同

腾讯文档是一款可多人协作的在线文档，可同时编辑Word、Excel和PPT文档，云端实时保存。可针对QQ、微信好友设置文档访问、编辑权限，支持多种版本Word、Excel和PPT文档模板。

钉钉网页版,免费提供windows版和Mac版,手机端、Pad、PC端等信息多端同步

Witeboard is the fastest way to collaborate real-time with your team anywhere.

印象笔记可以帮助你高效工作、学习与生活。

Teambition is a simple, efficient project collaboration tool with over 6 million users. Simply sign up with an email for free. Teambition supports teams to collaborate efficiently in various scenarios, such as inter-departmental collaboration, project management, R&D management, customer relationship management, and human resource management.