Share your trip, photoblog and be active on this forum.
trip and photoblogs will give you upto 75 credits max. You can also earn credits by referring Tripoto to your friend and family
You can earn tripoto credits from many ways such as publishing travel posts and blogs, posting photo blogs, writing reviews of some unique places, helping other fellow travelers with their queries on forum, referring friends and by participating and winning the various contests offered by tripoto.