First of all, i really like the idea of this site. It literally changes world to better, as the slogan says. Next thing is the design. Orange tint of the site is really beautiful, and design is very modern and site is easy to browse. On homepage i can see upcoming events and latest groups, and that makes it more interesting, so you can start using it and getting the point right away. Great idea, great design, easy to surf. Great site, nice job for makers!