m
- M or MB
- M&A
- m-commerce
- M2M
- M2NY
- M4C
- M4M
- m4w
- M8 or M8s
- MA
- Mac
- Macintosh
- Macromedia
- macrosite
- MacTCP
- MAE
- MAE-East
- MAE-West
- magic lantern
- magic smoke
- magnet employer
- magnetic
- mail bomb
- mail filter
- mailbot
- mailbox
- mailing list
- mainframe
- mainframe management
- mainsleaze
- Majordomo
- malware
- MAN
- management by spreadsheet
- Mandlebrot, Benoit
- manual submission
- map
- Mapedit
- MAPI
- MapQuest
- market share
- Market-Leninism
- martian packet
- Martin, James
- mashup
- mashup ad
- massage the data
- matricized
- matrix
- Matthews, Jim
- MAYA
- MB
- MBN
- MBONE
- Mbps
- MBRFN
- McAfees VirusScan
- McCarthy, John
- MCI project
- McLuhan, Marshall
- McLuhanism
- McNealy, Scott
- MCSE
- MD
- MD5 authentication
- MDR
- meatbot
- meatjail
- meatloaf
- meatspace
- mecca
- media contamination
- media fusion
- Media Lab
- meeting specialist
- mega menu
- mega-
- megabyte
- megahertz (MHz)
- MEGO
- meh
- MEJR
- melissa
- meltdown
- meme
- memory card
- mention
- menu
- menu bar
- merchant account
- merchant services
- merchantainment
- message board
- Met ED
- meta ignorance
- meta tag
- meta-
- metabrowser
- metacrawler
- metajacking
- metamediary
- Metamediary CEO
- metaverse
- Metcalfe's Law
- Metcalfe, Jane
- Metcalfe, Robert
- metoobies
- Mezzanine financing
- MF
- MFD
- MfG
- MFIC
- MFWIC
- MHBFY
- mhhm
- MHOTY
- MIA
- micro-
- microblog
- microbrowser
- microchip graffiti
- microcontent
- microdisplay
- micropayment
- microphotonics
- micropost
- microprocessor
- microscopic art
- microserf
- microsite
- microsociety
- Microsoft
- Microsoft's .NET
- mid-roll
- midair passenger exchange
- middle school dance
- middleware
- MIDI
- migrate
- MIH
- MIHAP
- MIL
- mil or .mil
- MILF
- milker
- millennials
- MIME
- MIMO
- mind share
- mini-homepage
- minicomputer
- MIP Mapping
- mips
- MIRL
- mirror
- MIS
- MISF
- mission critical
- missionary selling
- MIT
- MITIN
- mixed signal
- MKOP
- MLA
- MLAS
- mlm
- MM
- MMDS
- MMHA2U
- mmk
- MML
- MMORPG
- MMS
- MMX
- MMYT
- MO
- mobile
- mobile app
- mobile device
- mobile tagging
- mobile Web
- mobisode
- Moblin
- moblog
- modem
- modemhead
- moderated mailing list
- moderated newsgroup
- moderator
- MOF
- MOFO
- mommy-save
- MOMPL
- monetizing eyeballs
- monitor
- monitor pets
- monitoring service
- monitoring software
- Montulli, Lou
- MOO
- moonshine shop
- Moore's Law
- Moore, Gordon
- MOOS
- MOP
- MorF
- morph or morphing
- MOS
- Mosaic
- MOSS
- MOTAS
- MOTD
- motherboard
- MOTOS
- MOTSS
- mountain folk
- mouse
- mouse hand
- mouse pad
- mouse potato
- mouselexia
- mousetrapping
- MOV
- MOV or .mov
- Mozilla
- mozilla.org
- MP3
- MP4
- MPEG
- MPFB
- MR
- MRA
- MROC
- MRPH
- MS-DOS
- MSDSL
- MSG
- MSMD
- MSN
- MSNBC
- MSNUW
- MSP
- MSTM
- MT
- MTBF
- MTF
- MTFBWY
- MTLA
- MTMMFBWY
- MTSBWY
- MUAH or MWAH
- MUBAR
- muchomedia
- MUD
- MUD flaps
- mud shot
- muggle
- multi-mediocrity
- multi-user
- multicast
- multilink
- multimedia
- multitasking
- multitiered application
- murk
- Murphy's laws on technology
- music-swapping
- MUSL
- MUSM
- MVA
- MVA no PI
- MVA w/PI
- MWBRL
- MX record
- my
- my bad
- MYL
- MYOB
- MySpace
- mystery house