For those who look for credible sources to keep their CPE up-to-date.
The Big List of Free Continuing Professional Education (CPE) Resources for InfoSec and CISSP
See also the parallel thread at
Search Twitter for the feeds I've posted for years as #CPE4Free and #CPEs4Free. Also publish a daily paper.li
'zine with multiple CPEs every day, as the "Virtual Security Con". Probably 10,000 CPEs by now. 🙂
Also, IronGeek.com worth a mention.