Final answer:
To create an online training site for sales employees, project management software, cloud document sharing, and video conferencing are the most helpful tools for collaboration.
Step-by-step explanation:
Creating an online training site for sales employees requires collaboration tools to facilitate communication and organization. The most helpful tool for this project would be Project Management Software as it allows for organizing tasks, deadlines, and resources efficiently. Additionally, Cloud Document Sharing would be beneficial to enable simultaneous editing and access to training materials. Lastly, Video Conferencing would be useful to facilitate real-time discussions and presentations.