Microsoft SharePoint makes it easier for people to work together. Using SharePoint, your people can set up Web sites to share information with others, manage documents from start to finish, and publish reports to help everyone make better decisions.
Founded in 2004, Hightail was working in the cloud before the term was even coined. At first the service was a simple way to send the large attachments that email couldn't process, but has since grown to offer robust online sharing, storage and file management capabilities. Today, the company serves more than 40 million registered users across 193 countries and 98 percent of the Fortune 500.
Dropbox is a service that lets you bring all your photos, docs, and videos anywhere, and share them easily. Any file you save to your Dropbox will automatically save to all your computers, your phone or tablet, and the Dropbox website. Dropbox also makes it easy to share with others. And if your computer melts down, you can restore all your files from the Dropbox website with a couple clicks.