I do a lot of XSLT programming. I also do Java, PL/SQL, JavaScript, and a few others. I can easily find communities of Java and JavaScript programmers via the web. PL/SQL is a little more difficult, but between OTN and AskTom, I do pretty well. But XSLT seems to be neglected to me. Where do you go for XSLT? I know about W3Schools, and its great, but I'm beyond tutorials.
While SO is a great community, it is telling that the tags for this question have a combined usage of a only 188.
not sure if it is still active, but you might find http://www.exslt.org/ interesting.
Stackoverflow, of course!
Altova has some impressive looking XML tools. I often see them listed in Google's results when I am looking for general XML help. A quick search on their site gave a decent looking list of XSLT docs.
microsoft.public.xsl looks active. If newsgroups are your kind of thing.
The xsl-list is really active, and a lot of the big names in XSLT (such as Michael Kay) participate.
The xsl-list is the mailing list dedicated to XSLT questions.
XSLT questions are often submitted and answered:
in the Saxon mailing list (for questions related to the Saxon XSLT (1.0 and 2.0) processors)
in the xml-dev mailing list.
in the comp.text.xml newsgroup
in the microsoft newsgroups: microsoft.public.xslt, microsoft.public.xml and microsoft.public.dotnet.xml
Hope this helped.
Cheers,
Dimitre Novatchev