When There's NO Way To Figure Out An Editor's Name | Freelance Business Chat | Writing Forum

I would turn to basic Web searches. 

For example, search the client site using Google for the term "acquisitions editor" or whatever you need. You could even conduct a more general Google search and see if anyone else has published this information. 

If you suspect it's a one-person operation, you might do a WHOIS search to find out who registered the domain name. 

For something like Craigslist, it would depend if the buyer was completely anonymous. If you have the site or publication name, you can conduct searches like the ones I mentioned above. If they don't even give you that much information though, then you're pretty much stuck with a generic greeting. And they can hardly hold it against you if they intentionally kept all of that information private. 

That's what I would do at least. I wouldn't stress too much about it if they're going out of their way to not provide that information. But if it turns up in a search, then that's great -- it shows you can do your research. 

Jenn