Photo credit: Krishnac

1. StreamFile: Send any file up to 2GB to any email address
2. Teamness: Assign tasks, share files and manage your team online
3. PalBee.com: Have video conferences with up to 10 people
4. Appswave: Video conference, instant message and share your files with other people

1. StreamFile
   
   StreamFile is a web based file sharing system that you can use to send files to any email address. Just input as many email address you want, pick a file up to 2GB, and click send. People will receive a download link to get the file, which you can also share via IM or as you wish.
   http://www.streamfile.com/






2. Teamness
   
   Teamness is a new and innovative online project collaboration platform. Teamness's main features include task management, messages, file sharing, whiteboard, search engine, RSS and notifications. The service is completely web based free to use.
   http://www.teamness.com/








3. PalBee.com
   
   PalBee.com is a video conferencing system, that has just launched a new version of the product. It lets you set up video meetings with up to 10 people, who can all whiteboard, upload PowerPoint presentations, record for one hour anything that happens in the conference and publish it as a video on YouTube. The service is completely free to use.
   http://www.palbee.com/








4. Appswave
   
   Appswave is a fully featured web conferencing system which provides a full set of functionality within one single application. You can invite as much people as you want and have video conferences, instant messaging session with anyone, application and desktop sharing, and also the ability to record the entire meeting. Free to try, $39/month.
   http://www.appswave.com/