Research required - EASY money

We need a research report for free phone conference services similar to [login to view URL] The report should have the following fields for each service * Url * any limit on # of users * any limit on # of minutes per conference * Advertisements in beginning/end/middle of call * Recording option available or not * Any web conferencing / whiteboard or powerpoint slide broadcast option available ? * Local # available in country list ( e.g. USA, UK, Australia, even India ) These must support regular phone calling - skype type services would be ok if they support calling from a regular ( non voip ) phone