Richard Tillard

Here is my attempt to list out some super-useful but not-so-popular websites which offer images, vectors, videos, music, templates etc for FREE with personal & commercial use license.
Sometimes attributions are required. Make sure to check the license terms.
UPDATE (Feb 3, 2022)
So, I've added this list to a GitHub repo and from now on updates will be here: https://github.com/zcraber/Freebies-Hub 
Feel free to star it, fork it... or use however you want.
FREE Images/Photos & More
Mixkit - FREE Images, Videos, Templates & Music Pikwizard - FREE Images & Videos FOCA - FREE Images, Videos & Templates Stockvault - FREE Images, Vectors, Brushes & Templates Freedesignlife - FREE Images, Vectors, Brushes, PSDs, Icons & Fonts Picspree - FREE Images & Vectors Wingart Studio - FREE (Selected) Graphics & Templates Every Month picryl - FREE Images, Illustrations, Videos, Music, Documents etc USFWS National Digital Library - FREE Images, Illustrations, Videos, Audio, Maps etc Clip Art Blog - FREE Clip Art & Images FREE Images/Photos Only
Reshot - FREE Images Freephotos - FREE Images Freestocks - FREE Images Altphotos - FREE Images nappy - FREE Images slon.pics - FREE Images My Stock Photos - FREE Images Shutteroo - FREE Images Trunklog - FREE Images Skitterphoto - FREE Images Picography - FREE Images Burst - FREE Images Pic Melon - FREE Images My Photo Pack - FREE Images Vladmir's Collection - FREE Images Free Nature Stock - FREE Images Travel Coffee Book - FREE Images Skuak - FREE Images Stokpic - FREE Images Freely Photos - FREE Images Wunderstock - FREE Images Moveast - FREE Images Free Food Photos - FREE Images of Food unprofound - FREE Images Albumarium - FREE Images Pic Pac - FREE Images (pay what you want) iwaria - FREE Images from Africa Creativity103 - FREE Abstract Images & Textures Focus Fitness - FREE Fitness Images Free Vintage Illustrations - FREE Illustrations from Past Old Book Illustrations - FREE Illustrations from Past Reusable Art - FREE Old Artwork lowpolygonart - FREE Low Polygon Art Streamline Icons - FREE PNG Icons Cosmos - FREE PSD Icons marysrosaries - FREE Images (Religious) Irish Clip Art Archive - FREE Clipart (Raster) Dictionary Images -FREE Public Domain Images and Illustrations from Dictionary Logo Design Web - FREE Public Domain Images PDClipart - FREE Clipart (Raster) Antique Clipart - FREE Antique Clipart (Raster) WPClipart - FREE Images & Clipart FREE Vectors Only
Open Peeps - FREE Hand-drawn Vector Library  Isometric - FREE Isometric Vectors Illustrations - FREE Kit with 100 Vectors DrawKit - FREE Vectors unDraw - FREE Vectors Lukaszadam - FREE Vectors Open Doodles - FREE Vectors Woobro - FREE Vectors Free Vector - FREE Vectors Glaze - FREE Vectors manypixels - FREE Vectors Free Vector Maps - FREE Vectors Fresh Folk - FREE Vector Library with People & Objects Illustrations Humaaans - FREE Vector Library with People Illustrations Openclipart - FREE Vector Cliparts FREESVG - FREE Vectors SVG SILH - FREE Vector Icons SVG Repo - FREE Vectors Peechey - FREE Vectors Desket - FREE Random Vector Icons Sketch App Resources - FREE Sketch Resources Nicu's Clipart Collection - FREE Vectors ikonate - FREE Customizable Vector Icons FREE Mockups, Placeholders, Icons etc
uiprint - FREE Printable Wireframes, Mockup and Sketchpads uilogos - FREE Logo Placeholders iconmonstr - FREE Icons lstore graphics - FREE Mockups Mockup Club - FREE Mockups Thread - FREE 3D Mockups Generator 365psd - FREE PSDs Creative Tim - FREE Web Templates & Themes Email Monster - FREE Email Templates Design DB - FREE Templates FREE One Page Web Templates UIUX Repo - FREE UI and graphic design resources for Photoshop, Sketch, Adobe Xd and Figma FREE Videos Only
Mazwai - FREE Videos Coverr - FREE Videos Distill - FREE Videos Life of Vids - FREE Videos Vids Play - FREE Videos Dareful - FREE Videos Clipstill - FREE Cinemagraphs Motion Elements - FREE Stock Footage FREE Music & Sound FX
Free Music Archive - FREE Music Incomptech - FREE Music m-operator - FREE Music Purple Planet - FREE Music Free Stock Music - FREE Music Fesliyan Studios - FREE Music & Sound Effects The Motion Monkey - FREE 300 Retro Game Sound Effects Free SFX - FREE Sound Effects FREE Fonts Only
League of Movable Type - FREE Fonts Font Library - FREE Fonts FONT Repo - FREE Fonts Also, check these threads: 
Public Domain Pictures  Free Vector and Photo Resources Free fonts Curated list of Free for Commercial Use Fonts List will be updated as I discover more!
Last Update: Feb 03, 2022