Why aren’t Topic Maps ruling the world yet?

Half a decade ago Eric Freese asked "So why aren’t Topic Maps ruling the world?". Till today, many progress where made, e.g. the finalization of the ISO Topic Map standardization process. However, unfortunately Topic Maps still do not rule the world. Asking for reasons, we must note that many problems Freese mentioned are still insufficiently solved and new emerged, preventing Topic Maps from unleashing its full potential. Many things had been promised and prototypically implemented but the breakthrough in using and accepting Topic Maps as a powerful knowledge managing concept in science and business is still missing. Our poster will point out these problems, in order to start a new fruitful discussion process in the Topic Map community. In regard to Eric Freese’s call from 2002: "Let’s get to work", there is still a lot of things to do.