Assuming you are part of team that has team members in various part of the world, the team member need to work together on a project. They need to share documents, have ongoing live conference meetings to discuss project status and collaborate on design documents, keep track the changes made to project documents, able to do online discussion and keep track of project schedules.

Please research what products (3 different products) available on the market and recommend one product that best meet the team requirement. Please provide pro and con for 3 products as part of your evaluation, and recommend the best product for the team to use.