Gone are the days when project managers needed to know MS Project

As long as long you are not a service company where weekly you need spend an hour on international phone call discussing the progress in MS Project following tools are good enough to manage small teams.

• MS Excel.
• Google Spreadsheets.
• Trello

If these were less and you want to explore more here you go

http://www.inc.com/young-entrepreneur-council/10-apps-that-make-managing-projects-remotely-a-breeze.html