With this update, we deprecate our support Google Plus and Facebook feeds. Since now, the requests sent to these API will return a stub response with 403 status code.
The reason we do this is both services haven’t been working for a long time so far. Google has announced deprecation of Plus long ago. Their API responds with empty data which makes it no reason to support.
Regarding Facebook, their API has become much poorer in the last year or two. Nowadays, they allow searching using quite a narrow scope which leads to an empty result in most of the cases.
Our main sources of data, for now, are Twitter and Instagram.