Here is a guide for the Symbiostock site API. Developers, Marketers, and general geeks may enjoy exploring these features:

http://www.symbiostock.com/symbiostock-api-for-developers-and-marketing/

I cannot currently find the thread I wanted to ask this in so will ask here.

You indicate that we should tread carefully when linking with marketing sites - what are the risks, do they have access to pull the full sized files as and when they wish once they have a key?

If so do we have anyway of knowing what is happening

Is it easy to block/drop them if we have any concerns after we allow access.?