Here is the approach I would recommend taking if it were me: Get in touch with the team at Fotopedia ASAP (Call them if you can get their details either from t

Here is the approach I would recommend taking if it were me: Get in touch with the team at Fotopedia ASAP (Call them if you can get their details either from the site or via WHOIS). Start a conversation immediately about arranging a deal for them to recommend you as an alternative. Depending on what your model looks like for your own business I would recommend even going so far as to offering a cash incentive for them to do so (Nothing major at all). Creating a landing page specifically targeting Fotopedia users. Offer them a special deal for signing up. Get Fotopedia to send all their users that link in an email to their customers. You might want to also considering running an Adwords campaign targeting their brand name (This may or may not be OK in Google's TOS depending on where you live). Send all of that traffic to that same landing page. But for a couple of hundred dollars you should very easily pick up a large number of new clients this way. Again knowing nothing at all about your own business I would tend to think that this is a bargain compared to your usual CAC.