The regional lists are accessible here:
"Regional Plone forums":http://www.nabble.com/Plone-%28Regional-forums%29-f21526.html
…and as of this writing includes forums for the following countries:
- Portugal and Brazil
- Cono Sur (Argentina, Bolivia, Chile, Paraguay and Uruguay)
- Scandinavia (Norway, Sweden, Denmark, Finland, Iceland)
- New Zealand
If you don't see your country/region on the list, and believe there's enough activity to warrant a separate list for your area, please send a mail to limi at plone.org, and I'll be happy to set something up for you — whether you already have an existing mailing list you want to add, or a new one.