I hoarded a far amount of links in the some months after I nuked my PC and thought it would be nice to do that. @reaper will be interested.
Most is D&D-related. Links in gold are the ones I feel really worth checking out. If you have passed by this thread, please check them and you will not leave it disappointed.
General (PC) Area
Character Images:
[https://www.reddit.com/r/ImaginaryNetwork/wiki/networksublist] - Imaginary Network Expanded
[pinterest.com]
[https://imgur.com/gallery/XvquKU0] - Orc/half-orc images.
References:
[tvtropes.org]
[http://nicholasrossis.me/2014/03/09/show-dont-tell-cheat-sheet-facial-expressions/] - Face Expressions
[https://web.archive.org/web/20190221021740/https://dnd5e.fandom.com/wiki/Trinkets] - Official+UA Trinket list
[https://aguidetomanipulation.tumblr.com] - Social manipulation tips
[https://www.torchbearerrpg.com/wp-content/uploads/2016/10/Torchbearer-Cheat-Sheets-Dice-Rolls.pdf] - Torchbearer Cheat Dice Rolls
[https://www.reddit.com/r/worldbuilding/comments/a4yw4p/not_all_wings_are_created_equal_use_this_tool_to/] - Wings 101
[http://drowcampaign.roleplaynexus.com/drowlanguage.html] - Drow Name Table
[http://accent.gmu.edu/browse_language.php] - Speech Accents Archive
Other:
[http://goblinpunch.blogspot.com/2013/06/a-spell-called-catherine.html] - A Spell Called Catherine
[https://www.reddit.com/r/dndnext/comments/981roo/my_players_were_having_trouble_fleshing_out_their/] - Characterization Guide
[http://goblinpunch.blogspot.com/2014/09/7-myths-everyone-believes-about-druids.html] - Druid Ideas
[https://www.wargamevault.com/product/196744/the-Vampire-Prestige-Class-for-DD-5ef] - Vampire Prestige Class
[https://jerryjenkins.com/create-character-empathy/] - Making Relatable Characters
[https://www.quora.com/What-are-some-good-techniques-to-get-readers-to-care-about-a-character?redirected_qid=12472366] - Show Not Tell
[https://www.reddit.com/r/DnD/comments/6na3hi/i_compiled_a_list_of_racial_slurs_for_you_to_use/] - Racial Slurs
Character Concepts:
[https://www.reddit.com/r/AskReddit/comments/8a8mhx/dd_players_of_reddit_what_is_the_most_creative/] - “Best” ones
[https://www.reddit.com/r/DnD/comments/85skg4/what_are_some_funny_character_concepts_that_would/] - “Funny” ones
[https://www.reddit.com/r/LetsRoll/top/?t=all] - Subreddit
[https://www.reddit.com/r/dndnext/comments/7tedz7/favorite_character_concepts/] - “Favourite” ones
[http://whothefuckismydndcharacter.com] - Who the fuck is my dnd character?
[https://www.reddit.com/r/dndnext/comments/bw2kl7/character_concepts_for_every_classbackground/] - Character Concepts For Every Class/Background Combination
DM-specific Area
Prompts:
[https://www.reddit.com/r/dndnext/comments/7bpt3f/best_oneshot_youve_ever_ran_5e/] - One-shots
[https://www.reddit.com/r/DnD/comments/a74n8k/pcs_can_sell_a_word_to_an_npc_in_return_for/] - Puzzle Idea
[https://merricb.com/dungeons-dragons-5e-adventures-by-level/] - Adventures by level
[https://www.reddit.com/r/DnD/comments/39emlb/for_dms_only_fun_head_game_for_your_players/] - Fun deception game.
Rulesets:
[https://www.dmsguild.com/product/230784/Corruption-Rules] - Corruption Rules
[https://drive.google.com/file/d/0BxVHEMMjLlZ4cFVJTEFEcW9WV0U/view] - Death and Dismemberement alternative rules
[http://goblinpunch.blogspot.com/2014/06/youre-doing-familiars-all-wrong.html] - Alternative Familiar Ideas (3.5e)
[http://angband.oook.cz/steamband/Treasure.pdf] - Treasure Handling
[https://docs.google.com/spreadsheets/d/1vq1kz6PRAbw5LHy6amH-bNb4OuB8DBXL1RsZROt03Sc/edit#gid=0] - Homebrew Race Balance Guide
[https://www.reddit.com/r/DMAcademy/comments/91knwm/1_gold_piece_100/] - Price Conversion
[https://drive.google.com/file/d/1V_udNPxlTk_ufSyLsZ4caIO5LqFmE5LO/view] - Shop Stock List
[https://www.reddit.com/r/dndnext/comments/co29dv/how_we_gave_ranger_its_identity_back_or_at_least/] - Ideas to Modify Ranger
Worldbuilding:
[https://en.wikipedia.org/wiki/Sentence_(law)#Philosophies] - Jail Phillosophies
[http://aeonsnaugauries.blogspot.com/2015/05/how-many-monsters-does-campaign-need.html] - How many monsters does a campaign need?
[http://arsludi.lamemage.com/index.php/99/treasure-tells-a-story/] - Treasure Tells A Story
[https://www.reddit.com/r/dndnext/comments/9tzjm0/what_monsters_are_really_good_but_rarely_used/] - Unknown monsters
[https://i.redd.it/c2tl180d8e921.jpg] - House Styles by Era
[https://nimblesnotebook.tumblr.com/post/57170994691/myths-creatures-and-folklore] - Folklore list
[https://condor.depaul.edu/mfiddler/hyphen/humunivers.htm] - Human Universals
[https://www.reddit.com/r/worldbuilding/comments/6cu4sh/make_elves_or_other_fantasy_races_scary_again/] - Making elves the fok scary again.
[https://www.reddit.com/r/dndnext/comments/c5zww6/brainstorming_quests_for_an_all_drow_party/] - Drow Quests
[https://www.gaiaonline.com/journal/?mode=view&post_id=11711059&u=5844253] - Drow Cuisine
[https://paizo.com/threads/rzs2jr57?Drow-Cuisine] - Drow Cuisine
DMing:
[http://goblinpunch.blogspot.com/2015/07/the-5-types-of-ethical-dilemmas.html] - Moral Dilemma Types
[https://theangrygm.com/five-simple-rules-for-dating-my-teenaged-skill-system/] - General DMing
[http://themonstersknow.com] - Combat Tactics
[https://www.reddit.com/r/DMAcademy/comments/akwdf9/dnd_combat_how_to_keep_your_players_at_the_edge/] - More Combat
[https://thealexandrian.net/wordpress/4147/roleplaying-games/dont-prep-plots] - Don’t Prot Prep
[https://thealexandrian.net/wordpress/4154/roleplaying-games/dont-prep-plots-prepping-scenario-timelines] - Alternate Prot Prepping
[http://arsludi.lamemage.com/index.php/72/initiative-the-silent-killer/] - Initiative: the Silent Killer
[https://www.reddit.com/r/DMAcademy/comments/b68jl0/tip_ask_your_players_do_you_want_to_explain_how/] - Player Presence
[https://www.reddit.com/r/DMAcademy/comments/ar1rxl/a_youtube_channel_that_is_never_mentioned_but/] - Youtube Channel
[https://drive.google.com/file/d/1wEpJ50iHqLyueYc0a4cBS9F0DRbsJIgI/view] - Giffyglyph’s Monster Maker
[https://www.reddit.com/r/rpg/comments/5owgvc/making_the_resistance_interesting/] - Making RPs about a resistance fun
[http://www.dnd.kismetrose.com/EvilCampaigns.html] - Campaigns for Evil Peeps
Random Tables:
[https://centralia.aquest.com/downloads/NLRMEv2.pdf] - d10000 Magic Wild Surge table
[http://goblinpunch.blogspot.com/2015/01/d100-minor-magical-items.html] - d100 Minor Magical Items
[http://dndspeak.com/2018/04/100-ridiculous-famous-legends/] - 100 Ridiculous Famous Legends
[https://www.reddit.com/r/DnD/comments/2oqgv5/100_shitty_plot_hooks/] - 100 shitty plot hooks
Traps:
[http://arsludi.lamemage.com/index.php/90/bad-trap-syndrome/] - Bad Trap Syndrome
[http://arsludi.lamemage.com/index.php/91/bad-trap-syndrome-curing-the-bad-trap-blues/] - Making Good Traps
[https://www.drivethrurpg.com/product/269764/Tricks-Empty-Rooms-and-Basic-Trap-Design] - Tricks, Empty Rooms, and Basic Trap Design
[https://www.reddit.com/r/DnD/comments/304reh/genuinely_unique_traps_the_greatest_trap_ive_ever/] - Trap list
[https://docs.google.com/document/d/1hfompGbslrV_YvQ4ktPnY7vg-_blkIZ72hPcXLEWZdQ/edit] - Dungeon rooms.
[https://www.reddit.com/r/DnD/comments/1b0965/your_favourite_dungeon_puzzletrick/] - More traps
[https://www.reddit.com/r/DnD/comments/7j9lqw/dms_of_reddit_whats_the_most_insidious_trap_youve/] - Insidious Traps
[https://www.reddit.com/r/DnD/comments/5is6cl/what_are_the_best_nonlethal_dungeon_traps/] - Nonlethal Dungeon Traps
[https://www.reddit.com/r/DnD/comments/2izi2r/best_traps_you_have_created/] - Best trap you have created
[http://www.giantitp.com/forums/showthread.php?154363-D-amp-D-Hilarious-Traps] - Hilarious Traps
Others
Resouce Compendiums:
[https://www.otherworldlyincantations.com/mastery/#1542713060957-e4d5209f-fc76]
[https://www.reddit.com/r/DnD/comments/7nq65f/massive_dms_toolkit_5e_resources/]
[http://questingblog.com/resources/]
[https://campaignwiki.org/wiki/LinksToWisdom/HomePage]
[http://hackslashmaster.blogspot.com/p/trick-trap-index.html]
[https://www.reddit.com/r/DMAcademy/comments/aq9j7n/essential_tool_kit/]
Misc:
[https://drive.google.com/file/d/1Y1moWoyz5mGLhyWSU5JXreT2XQT8eguP/view] - Campaign logs of a guy
[https://1d4chan.org/wiki/Tale_of_an_Industrious_Rogue,_Part_I] - DnD Greentext
[http://www.scratchfactory.com/Resources/LavaBanners/LavaRules.pdf] - Lava Rules
[https://media.oglaf.com/comic/trapmaster.jpg] - Overthinking Trap Comic
