[richardburton]

(I'm working on Sourcing.io.)

Great question. Our database is built up by indexing publicly available information. Some (or all) of the engineers that connect their accounts will already have a GitHub account and, if so, will probably be in our index. However, we certainly don't use the social connection feature to index even more people, particularly if they're not publishing code and are more private.

The ability to see your team's extended network of engineers is really useful but we recognize that it's pretty scary to connect your personal social accounts to an app that's work-related. We're working hard to earn the trust of the engineers who happy to share their network with their employers.