Jeffrey Beall has published the 2017 version of his predatory publisher list. When he started the list in 2011, he had 18 publishers on the list. Now there are 1155! The number of standalone journals has gone from 126 to 1294 in the same time period. Since 2015 he has also been tracking misleading metrics and hijacked journals.
The list is getting to be so much more vital as the predatory publishing industry grows. Just the other day a colleague asked me my opinion of a publisher she had never heard of, but which had made her an offer to publish a paper. I showed her the site, and we found the publisher quickly on the list. The email to her was summarily filed in the trash. One less researcher to be fooled, but I fear that there are many more. Spread the word to your colleagues that you can check the list before you submit! It's not a guarantee, but it's a tool to help you assess the journal in question.
Update 20170117: The lists disappeared on January 15, it is assumed that some publisher on the list is trying a strategic lawsuit against public participation (SLAPP) and has forced a take-down. There is a detailed discussion to be found at the blog Debunking Denialism.
The lists are still on the Internet archives for now. The links are giving at the above-mentioned blog.