Those who are addicted to messaging and emailing will find this list comprehensive and useful...

I&I: Intercourse & Inebriation

IAC: In Any Case -or- I Am Confused

IAE: In Any Event

IAITS: It's All In The Subject

IANAC: I Am Not A Crook

IANADBIPOOTV: I Am Not A Doctor But I Play One On TV

IANAE: I Am Not An Expert

IANAL: I Am Not A Lawyer

IANNNGC: I Am Not Nurturing the Next Generation of Casualties

IASAP4U: I Always Say A Prayer For You

IAT: I Am Tired

IAW: I Agree With

IAYM: I Am Your Master

IBGYBG: I'll Be Gone, You'll Be Gone

IBIWISI: I'll Believe It When I See It

IBRB: I'll Be Right Back

IBT: In Between Technology

IBTC: Itty Bitty Titty Committee

IBTD: I Beg To Differ

IBTL: In Before The Lock

IC: In Character -or- I See

ICBW: I Could Be Wrong

ICYC: In Case You're Curious -or- In Case You Care

ID10T: Idiot

IDC: I Don't Care

IDGAF: I Don't Give A F***

IDGARA: I Don't Give A Rats Ass

IDGI: I Don't Get It

IDK: I Don't Know

IDKY: I Don't Know You

I-D-L: Ideal

IDM: It Does Not Matter

IDST: I Didn't Say That

IDTA: I Did That Already

IDTS: I Don't Think So

IEF: It's Esther's Fault

IF/IB: In the Front -or- In the Back

IFAB: I Found A Bug

IFU: I F***ed Up

IGGP: I Gotta Go Pee

IGTP: I Get The Point

IHA: I Hate Acronyms

IHAIM: I Have Another Instant Message

IHNO: I Have No Opinion

IHTFP: I Have Truly Found Paradise -or- I Hate This F***ing Place

IHU: I Hear You

IIABDFI: If It Ain't Broke, Don't Fix It

IIIO: Intel Inside, Idiot Outside

IIMAD: If It Makes An(y) Difference

IIR: If I Remember -or- If I Recall

IIRC: If I Remember Correctly -or- If I Recall Correctly

IIT: Is It Tight?

IITLYTO: If It's Too Loud You're Too Old

IITYWIMWYBMAD: If I Tell You What It Means Will You Buy Me A Drink

IITYWYBMAD: If I Tell You Will You Buy Me A Drink

IIWM: If It Were Me

IKALOPLT: I Know A Lot Of People Like That

ILA: I Love Acronyms

ILF/MD: I Love Female/Male Dominance

ILICISCOMK: I Laughed, I Cried, I Spat/Spilt Coffee/Crumbs/Coke On My Keyboard

ILU: I Love You

ILUAAF: I Love You As A Friend

ILY: I Love You

IM: Instant Messaging -or- Immediate Message

IM2BZ2P: I am Too Busy To (even) Pee

IMAO: In My Arrogant Opinion

IMCO: In My Considered Opinion

IMEZRU: I Am Easy, Are You?

IMHEIUO: In My High Exalted Informed Unassailable Opinion

IMHO: In My Humble Opinion

IMNERHO: In My Never Even Remotely Humble Opinion

IMNSHO: In My Not So Humble Opinion

IMO: In My Opinion

IMOO: In My Own Opinion

IMRU: I Am, Are You?

IMS: I Am Sorry

INMP: It's Not My Problem

INNW: If Not Now, When

INPO: In No Particular Order

INUCOSM: It's No Use Crying Over Spilt Milk

IOH: I'm Outta Here

ION: Index Of Names

IOUD: Inside, Outside, Upside Down

IOW: In Other Words

IPN: I'm Posting Naked

IRL: In Real Life

ISAGN: I See A Great Need

ISH: Insert Sarcasm Here

ISO: In Search Of

ISS: I Said So

ISTM: It Seems to Me

ISTR: I Seem To Remember

ISWYM: I See What You Mean

ISYALS: I'll Send You A Letter Soon

ITA: I Totally Agree

ITIGBS: I Think I'm Going To Be Sick

ITM: In The Money

ITS: Intense Text Sex

ITSFWI: If The Shoe Fits Wear It

IUM: If You Must

IWALU: I Will Always Love You

IWBAPTAKYAIYSTA: I Will Buy A Plane Ticket And Kick Your Ass If You Say That Again

IWIWU: I Wish I Was You

IWSN: I Want Sex Now

IYAOYAS: If You Ain't Ordinance You Ain't Sh**

IYD: In Your Dreams

IYKWIM: If You Know What I Mean

IYKWIMAITYD: If You Know What I Mean And I Think You Do

IYO: In Your Opinion

IYQ: I like you

IYSS: If You Say So

IYSWIM: If You See What I Mean

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