Since your editor supports several languages and frameworks(most of them open source), I think it would be a good invested marketing time to announce your editor all over there. In many cases it would mean subscribing to some wiki and adding there a short text and links (some allow even screenshots with the corresponding language/framework). E.g. http://wiki.python.org/moin/PythonEditors , but there are many many more (depending on how many do you officially support).
Well, just an idea ,