Tools for Possibilities: issue no. 189 Free telephone conferencing UberConference UberConference is a welldesigned site offering free telephone conferencing with great service and great usability. For instance: You can save the contacts that you invite to calls. You can import your contact list from other sources. When you, or your contacts call in from a number on record, no PIN is required. During the call, the web page shows who is talking (useful for large conferences or new contacts). The service sends out email reminders immediately prior to the scheduled call time. The basic service is free, and you can pay for additional functionality, like recording the calls. —  jlw One number to rule them all Google Voice The concept is brilliant: have one phone number you keep forever, and have all other phones in your life, as you upgrade, or move on, pass through your One Number. You give only that one number out for any cell phones, landlines, or internet phones you have.…