If you are active on Facebook, joining a 3D printing or 3D modeling group would be a great way to show off your work on Shapeways, share ideas, or find inspiration through what others are doing.  Facebook is the largest social networking site on the planet and is a goliath platform for engaging and interacting with people who share the same interest and hobbies that you do.One of the very early features of Facebook prior to the fan page were Facebook groups.There are still millions active of Facebook groups out there which you can join and be part of to interact with people around the world who share common interests.   By doing a simple search on Facebook you can find a list of groups that best fit your interest.