"the best thematic keyphrase analyzer I've ever seen. Grokker comes in pretty close…
…for hardcore SEO keyword research, though, theConcept is the clear winner."
– Cameron Knowlton, http://www.igods.com
"I just love theConcept, it is a fantastic tool. It has saved me so much time and effort in my research
for my next book since I tried and immediately bought it. How could I live and work without it before?
"Inconceivable," I guess, is the right adjective in this case!!!"
– Hsiung Tze
"Wow!…elegantly written and useful…"
– Joe Becker
"This is great software."
– Boudewijn Bertsch