A few months ago Antoine started off the svg-coders mailing list (with support from ILOG) based on irritation we'd had for ages with how low-quality and high traffic svg-developers had. The subscription list was high, and included a fair number of high-profile people in the SVG community (as well as in the Perl community, which I think is great).
For a long while it stagnated, which was a pity, and I thought it was a failed attempt. But surprisingly enough, in the past few days it has seen over thirty posts and it might in fact be alive
One day I'd like to read a long and detailed paper on mailing list dynamics. They are truly interesting.