We check this website, now abc-clio.com is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is abc-clio Down Right Now? - NO! abc-clio is up!
If you have problem with access to site abc-clio, and domain abc-clio.com is not avalible.
Clear browser cache and/or try other web browser
(Chrome, Firefox or Safari).