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Dear all, today we re-opened account creation for CCP4wiki (and XDSwiki). It had been closed since we were hit by spammers (like e.g. PyMolwiki), but we recently discovered a method that helps to prove that the account is really created by a a human being - as opposed to a computer program that creates spam articles with e.g. Viagra advertisements. Account creation now uses a "Captcha" which is not of the boring type, but rather challenges your expertise in telling cats from dogs. Happy wiki-editing! Kay