Any potential for how to create interview products niche?
My big problem is determining if there is any volume potential in a this niche of selling information marketers a program designed to develop products from interviews. I have googled the subject and found about 8 sites selling products of this type with prices from$47 to $97 dollars. The alexa page ratings on the sites starts with one at abut 155,000 and then quickly drops to 700,000 and then into below, 2,000,000. I check out the google keyword tool and it seems not not really generate much when interview based audio products is keyed in. After "making money online" the keywords drop off to almost no hits in related terms. Based on this it doesn't seem to be a market, but with niche items, they operate under the radar and tracking their potential is very hard.
Can anyone suggest another way to look into volume potential or offer any other suggestions?
Thanks for your help. Ed.