There are so many good blogs and websites out there with excellent information. There are just way too many to list individually, and why recreate the wheel when someone else is already doing it.
I recommend you visit this site weekly for current information related to digital forensics, incident response, and malware analysis. Topics include software updates, software releases, presentations, forensic analysis, malware, and miscellaneous information related to the field.
For an extensive list of tools for DFIR visit this site:
DFIR Training (tools)
For an extensive list of DFIR training available visit these sites:
DFIR Training (education)
For an extensive list of DFIR blogs available visit these sites:
For an extensive list of DFIR communities visit these sites.
DFIR – The Definitive Compendium Project (community)
DFIR – The Definitive Compendium Project (memberships)
For an extensive list of online images, to test tools against, visit these sites:
DFIR Training (images)
Forensic Focus (images)
Finally, the site to download malware samples for analysis and improving your skills is: