Photo credit: Rudat

1. Mobivox: Set up free or really cheap VoIP group calls with up to 9 people
2. Call Graph: Record any Skype call in MP3 format automatically
3. Babuki IM: Free software-based and web-based multi-protocol instant messenger
4. Inv.io: Upload and share any file or folder up to 800MB

1. Mobivox
   
   Mobivox is a new service that you can use to get free or cheap phone calls with everyone you want. After you register, you can set up a phone call with up to 9 people. All you need to do is select who you want to call, wait for your phone to ring, and you'll be automatically connected with that person: free if he is a Mobivox or Skype user, or with cheap rates if it is a normal landline or mobile phone.
   http://www.mobivox.com/





2. Call Graph
   
   Call Graph is a free Skype plug-in that allows you to record any incoming or outgoing call. After you install it, Call Graph will start recording any Skype call, including Skype-in and Skype-out calls, automatically, but you can also start and stop manually. All you have to do, is give the calls a name after you hung up and wait for the program to save the call in MP3 format. Call Graph is free to download and use.
   http://callgraph.in/





3. Babuki IM
   
   Babuki is a free instant messenger that works both as a download software for Windows and Mac, or in a web based version. It allows you to connect to MSN, Yahoo!, AIM, Google Talk, ICQ, and more networks with all their basic features. To use the web-based version you will need a FaceBook account to log-in, else just download the software based version and start using Babuki now. Free.
   http://www.babuki.com/mainpage/





4. Inv.io
   
   Inv.io is a free hosting solution that provides free space to host big files: it provides for no price 800 mb per link (1gb if free-registered), and it allows users to upload and share any type of file, as well as to select entire folders to create and customize photo galleries, video players, mp3 players. Any file can start being shared even before the upload is finished. Free to use.
   http://inv.io/