Want to connect with other 3D print folks? One way might be the newly created "3D Printing Network". The network, which appears to be a mailing list and IRC channel, is sponsored by the Fellowship of Free Software Foundation Europe, or Fellowship of FSFE.
According to the network's description:
The 3D Printing Network (3DPN) is a neutral, non-partisan, public network of 3D printing professionals facilitated by FSFE. 3DPN is an Free Software driven network, which enables co-operation among multiple companies and a volunteer community. One goal is to develop future 3D printing related solutions such as a 3D Printing management platform. 3DPN aims to engage all existing 3D printer manufacturers and software developers in the project, both Free Software and non-free software developers, and gather the broad 3D printing Free Software community under one brand.
If you're looking to find others interested in 3DP, this just might be the place.