has the (serverside) iAquire widget any markup (ul, li, divs, spans, table - layout) that stays the same over the whole network? if yes, then its pretty easy to identify the whole network for them.
They do not. They simply request a link... and most of the time request it in the middle of your content, written in like it's a natural link you happened to think was appropriate to your audience.
Thanks for all the answers guys - a clarity I appreciate and will take action on.