M2M

M2M is a three-letter abbreviation with multiple meanings, as described below:

Machine to Machine, a buzzword describing the field of machine-to-machine communications
M2M (band), a musical group
Monument to Mankind a planned monument were one artist from each of the countries of the world is selected to sculpt a stone cube into a representation of his or her home country's culture. These cubes will then be placed on the terrasses of a very large stepped pyramid. This pyramid will possibly be the largest pyramid in the world when finished. Behind this project is the Humanitad Peace Organization. [1]
Made2Manage Systems, Inc. [2] Enterprise Resource Planning (ERP) Software.
Mobile-to-Mobile defined as calls from one cellular telephone to another.
Online, M2M can also mean male to male or man to man and usually implies same-sex male relationships.