Tom Gross and Dan Reem share their top three go-to resources when seeking to expand their Dungeons and Dragons knowledge. Please check out these books and websites when you get the chance:
The Monsters Know What They're Doing and Live to Tell the Tale by Keith Ammann--monster and character tactics explained in a fun, informative way.
Fantasy Name Generator pretty self-explanatory.
rpgbot.net: resource for character optimization and other useful information.
Dungeon Dudes: an engrossing homebrew playthrough campaign as well as videos covering a huge range of D&D related topics. These guys give great advice, put on a fascinating show, and engage regularly with fans. Definitely worth a look.