For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
Chili Piper - Chili Piper is an intelligent calendar for Sales teams, to book their own meetings or set appointments for other teams.
Dropbox - Online Sync and File Sharing
MeetNotes - Increase Productivity with Meeting Notes Tool. More effective minutes, Prepare Agenda, Collaborative Notes & Action Items.
Google Drive - Access and sync your files anywhere
Doodle - Make meetings happen. With Doodle, scheduling becomes quick and easy.
Mega - Secure File Storage and collaboration