!BugGrabber
AddOnAddOff- addon profiler
AddonLoader - the non-lib version, loads addons on events or in spread out time (less loading time)
Align - draws a grid on the screen to align stuff with
Atlas - Instance maps (looking for a replacement tbh)
AtlasBattlegrounds
AtlasDungeonLocs
AtlasEntrances
AtlasFlightPaths
AuctionFilterPlus - Makes my auction life easier
AzCastBar - castbar
AzCastBarOptions
Babble-2.2 - leaving this mention in, I wanna get rid of it soooo bad.
Bagnon - bag mod (all in one)
Bagnon_Forever
Bagnon_Options
BGDefender - buttons to hit based on how many incoming etc for bg. it's not the greatest, but meh, I hate typing (and thus letting go of my mouse in bg)
BGTimers
Blizzard_* (all the blizz ones, ya can't avoid them anyhow)
Bongos2 - actionbar mod, changed to have a dreamlayout. Not all modules are installed.
Bongos2_ActionBar
Bongos2_Options
Bongos2_Stats
BugSack - error tracker thingie
BunchOfBars - trying this one, but soon to be replaced with oUF raid frames, I am afraid for errors in my oUF layout, so I keep this as backup.
BunchOfBars_Agro
BunchOfBars_Buffs
BunchOfBars_Dispel
BunchOfBars_HealEstimate
BunchOfBars_HealthBar
BunchOfBars_HealthBarText
BunchOfBars_Highlight
BunchOfBars_Maintank
BunchOfBars_ManaBar
BunchOfBars_Name
BunchOfBars_RaidIcon
BunchOfBars_Range
BunchOfBars_Threshold
BunchOfBars_Tooltip
BunchOfBars_VoiceIcon
Butsu - loot frame mod. really minimalistic and sexy :P
ChatSounds - gives me a beep when I get messages when alt-tabbed.
ClassTimer - tracks my debuffs etc (on my pally it shows my seal timer too, I judge one, keep another seal open)
Clique - click casting, I could replace it with Click2Cast and get rid of Spellbinder too, but meh, I like this one better.
Decursive - decursing made so damn easy, i can't believe I never started using this sooner.
Dock - yes, I am beta testing Dock. You might want to look at this in the future.
Dock_Config
DoubleWide - double questlog frame width!
EXPBlock - xp shown, on tooltip more info, courtesy of Tek.
ExpressMail - Speed up getting the mail, check a box and click away. (tek's too)
Fane - highlight tabs on message received.
FlightTimes - part of azCastBar - times (and records) flight times.
FriendsBlock - show friends..
FuBar_CorkFu - rebuff made easy, bind to a key and spam it :P
GatherMate - for gathering professions.
GatherMate_Data
GuildBlock - show guild stuff people online and all that.
HatTrick - checkbox for helm and cloak
LightHeaded - wowhead comments in game per quest, with clickable coords.
Mendeleev - extra info on the tooltips, gonna delete this soon too.
MooniacalMap - my own worldmap addon, scalable, dragable, transparent, with coords (player and cursor).
MooniacalMinimap - my own minimap addon, heavily based on oMinimap, but with coords and a few more things.
MoonUI - contains my clock addon, my panelling, some textures, font changes, tooltip modification (if I can ever get the hooking right)
NDragIt - dragging stuff around
Nudist - take clothes off and leap for death!
oCD - cooldown counter
oChat - chat mod, but heavily modded
oGlow - gives my icons the color of the rarity
OmniCC - cooldowncount too, but on the buttons. (I use oCD when in bg, I don't have the time to stare at the cc on my actionbar.)
OmniCC_Options
OptionHouse - track performance, enable/disable addons etc.
oTaxi - lists instead of the map at the gryphon master
oUF - unitframes mod. MOdded to my flavor as well
oUF_Moon - my layout (with range check thanks to cold, rest text, pvp, level etc etc)
OurMedia - shared media. Should get rid of this too
Panda - prospect, disenchant, etc predictor. tekkubs
pBuff - p3lim's buffs 
pTags - p3lim's nameplate changes.
Quelevel - puts level of quests in questlog and tracker
QuestAnnounce - announces progression in party chat (need to replace this)
SpecialEvents* - all the special event libs, not all load.
SpellBinder - keybind setup for macro's items etc
tekability - durability shown on the item in char panel
tekAccept - auto accept party invites by friends and guildies
tekilevel - show item level in tooltip
tekJunkSeller - sells grey items at vendor
tekKompare - hover over item, show currently equipped etc.
teknicolor - colors player names per class
tekSellValue - inserts sell value in tooltip (vendor)
teksLoot - minimalistic group loot frame
Tenmetsu - change chat tabs to simply colored text, also modified
TomTom - way point system to go with LightHeaded
VendorBait - highlights best quest reward choice for vendor selling
Yata - totem popup bar and timers. only enabled on my shaman.