Ma.gnolia: OpenID to Save Anti-Spam, Anti-Spam to Save OpenID - ReadWriteWeb
http://www.readwriteweb.com/archives/magnolia_openid_to_save_anti-spam_anti-spam_to_save_openid.php
"Cutting-edge social bookmarking service Ma.gnolia stopped issuing new user credentials last night and now requires new users to create a Ma.gnolia account using an OpenID from somewhere else."