Well, you name it, but I’ll take some work, digging, if you will, and you won’t find many sites, but the ones you do find might be really relevant and helpful, especially in terms of Social media, Engagement, etc.

I have a client who runs a OCD site (Obsessive Compulsive Disorder) and while I had used Radian6 and SEOElite to come up with a list of sites, overall, SeoElite’s list was not geo-targeted, was based on Google, and wasn’t too useful for advertising.

Radian6’s result on a profile for “Obsessive Compulsive Disorder + OCD” and a few related keywords, came up with a lot of forums and sites that didn’t seem obviously connected, yet had some relevancy at some point during the last month (topics, comments, unique IP addresses, etc).

However, I found this technique while trying to answer a question I posed to myself - as I had seen one of the urls Radian6 pulled up was a search of YouTube for “Obsessive  Compulsive Disorder + OCD“.

So, I started looking at the videos and focused on those viewed between 10,000-80,000 times (it’s a niche subject, after all) and got the top 5 links for each (YouTube publishes this info for each video) and was able to find a few more sites that were highly relevant.

Here’s the thing - depending on the subject, you’ll have to spend a few hours on this - but you might uncover some blogs and communities where that are very targeted, very relevant to what your trying to get attention for - and I think, that, may ultimately yield the best results - since the needs to be a human being to interpret what your looking at.

Just go ahead and try it - if your into this kind of thing.   And, btw, I did look at Google Insigtht, but it wasn’t all that helpful for this kind of thing because it didn’t identify sites, just other keywords.

In the end, I could always fall back on ComScore Media Metrix, and get top sites for a country/segment, etc - but the problem is here, again, what’s the demographic/age/sex of the target audience, what is the target income?

Unless you know that - it’s hard to get the best results - usually people don’t rattle off that information - though you’d think, they’d know it (esp a clinic, for example - they know the breakdown of their patients who come in - and if you step back to think about it - it’s a great place to start with ad targeting, based on what you can already pull in from “house” files.

So… just looking, just letting your curiosity lead you - is the best way - and yes, I still have technique and analysis to back me up.

BTW, I’ll be in California most of next week at Semphonic XChange and Search Engine Strategies - home to see some of you there - my twitter handle is …. webmetricsguru in case anyone is into Twitter.