Logic tells me that there must be judges in Finland and Iceland who are posting their opinions, since those countries are so ahead on the Net. I have some difficulty in tracking Web sites in those languages, however. Germany and Sweden should have judges posting stuff online, too, but my research tends to find law school sources for law but not courts individually publishing opinions. Brazil in all likelihood has the most judges posting opinions online. It's all chaos in Brazil and so each court is free to move forward as rapidly as it likes.
Brazil ignores all other countries' use of the Web.
On my darkest days, when the endless Seattle rain would beat against the window if my office had a window, I go to Brazil and bask on the beach of their glorious accomplishments. In the last year I have seen Spain really break out ahead of other countries in putting law on the Web. What I look for are local jurisdictions placing texts online without guidance from or reference to central authority as the best measure of Net sophistication getting into the fabric of communities. I don't know what role the judges play in maintaining these sites. Within the U.S., there are several judges who use the Net to distribute court information, though you are correct in perceiving that few post their opinions.