The most members online in one day was 345, 11-11-2009.
AmishLuvah, Angus Khan, AntiZombie, Arlaharen, artificer, ASeparateFirst, Atticus, azjoerael, B1gn4sty, Baron M, Beermonkey, Bexley, Blackmore, blue loki, Boys in Blue, Brochilles, brucemanning, Brushmistress, Buhallin, Butters, caffeinated, Calisto, capsfan34, CaptMorgan, CartoonKiller, CaseyJ, chaosobscuros, Chazza, chrsjxn, Chucklemonkey, clanqui, clevername, Commander Y, CptCaine, crombach, Csonti, DarkLegacy, Darkson, DasWeave, Deathjester, derchef, dgraz, Dolomyte, Doomsmythe, Dosadi, Dragonforge, dragonwolf, Dragoon130, Draig, dreadpiratelynx, druchii, Druthu, ecs_norway, EricJ, Erryll_Flynn, Etna's Vassal, FaveDave, Flashover, Flikfutch87, Fool, FrankTheGodlfish, furbs178, gael, Geijhan, Ghool, Gobbo, gold_penguin, gormalesh, greenstuff_gav, Grimmwolf, gru6y, Gunthyr, haakon, HamishMcGreigh, Hands of Blue, HandsomeDan, Happypanda, Harliquine, Headcase2, higherbrow, Hob_Player, HopelessHeretic, huntroll, Ice Edge, Inquisitor Wall, Isoulle, ispep, Ivellis, Jerkle, jhlgl, Jimmy Butane, Jimmy35, Jubilee, Juliet, junkenstein, karn987, kbdrand, Kelmor, Keltheos, KingMob, krusty, L D P, Lalochezia, lauth81, lawrence, LemmingStampede, LeopolddelaSolail, Lionheart, Lucifer_Drake, macgowan, Major_Gilbear, Marcalla, marshal8, marvinlerouge, maverickman5, mbowsher76, MEdwards, Midnight Lurker, minigamer1953, Mister Feral, Monkeyclops, Moros, MrRuffles, Myevilants, N0rdicNinja, n0signal, nebiros, Neolis, NephilimUK, nerdelemental, NewbieFromHell, nightgaunt98c, Nutcase168, ook-productions, ork56, PaintMinion, pancake ss, Papa, paperbag4, paperbagfox, paradox, Parintachin, Parius, peanut, Peterdita, pharaoh, Phoenix, Pipeline, Prophaniti, Pwnbeard, Q'iq'el, Quirin, Raintar, RangerRob, Rathnard, ratpfink, Ratsmitglied, RedScorpionsGirl, redstripe, RogueM, Ropetus, Rorik36, s0ule55, Shepherd, Silas Cordell, Sir_Thom, sjostrand, Skell, Soulreclaimer, Spectre, Srdjan Stankovic, St. Anger, stephengroy, SuicideCommando, suurimonster, Svenn, tacklew, ThatTyeGuy, The Butcher, TheBugKing, themurphyfella, thetang22, tiger g, tmsmnns, Tumling, U.S. Male, Uriel, Valloa, VeryStrangeFish, vxghost, wanderingmonk, Warlord Imp, WEiRD sKeTCH, wetdigestive, witchfire, Wombats, wrabbit37, xankriegor, Zee, Zenoren, ZerountheQuick, Zeta_one

The most registrations in one day was 14, 11-16-2009.
azjoerael, FaveDave, Flikfutch87, Hands of Blue, ZerountheQuick