One problem with public web services is that if you depend of them in your software, you are pretty much screwed if the service is cancelled for some reason. The solution is to have alternative services by hand you can switch to.
For example, when the tag extraction service tagyu shut down, codewarrior, the popular tagging plugin for wordpress went down too.
Fortunately, it is relative easy to change the plugin so it uses tagthe.net instead of tagyu. We
did this in January, and
Jay has some instructions on how to change the service in more recent versions.
As for tagthe.net, it has become a very successful service for knallgrau and we are using it within several of our own applications, like
blogr.com or
wahlblogs.at. So our plans are definitely to keep the service running and continually improve it.
However, this does not mean that the world couldn't use more text extraction services. Choice is always a good thing, and this is especially true with web services.
And if you happen to have a plan for a service that is similar to tagthe.net,
please consider a interface similar to ours, or contact us so we can talk about a common interface that fits both our needs. There is nothing worse for an application developer than to write two different interface codes for two services that actually do the same thing.