Share 'Online Collaboration Tools'

For most of my projects I need to work with a geographically challenged team. On my most recent project I have team members in Corbin, KY; Atlanta, GA; Knoxville, TN; and Seattle, WA. In order to stay on the same page, I use a gamut of technologies. Here is a short list with a quick description. I've tried several conference call systems; many for pay and none have been as high quality or as e...