AUSTIN, TX -- When a reporter asked Vaclav Havel to comment on Iran's post-election crisis, the former Czech president said, "Expressions of solidarity with students and others who are defending human rights are important." Havel spoke from experience: he led the Velvet Revolution that peacefully overthrew a totalitarian regime.

But for Iranians living abroad who wish to express their solidarity with the anti-Ahmadinejad protesters, there's...