| MAT3 | Matthias Ring |
| MC | Martin Conrath |
| MRGrunenberg | Michael R. Grunenberg |
| MSvob | Markus Svoboda |
| Mad_Duck :-) | Holger Linz |
| MagazinPIZ | Steffen |
| Marina | Walter Kussmaul |
| Mario | Beug |
| Marny | Marny |
| Mars | Ruediger Creytz |
| MartinLV | Martin L. Völker |
| Max | Max Kossatz |
| McFly | Kai Redemann |
| Meus :-) | Michael Meyer |
| Michelle :-) | Michelle Konzack |
| Michelle-EDU | Michelle konzack |
| Miki | Michael Richter |
| Millet | Millet Porridge |
| Mirko | Mirko |
| Moby | Andreas Kühner |
| Moin | Maik Eichhorn |
| Moles | Andreas Schmidt |
| Moria | Armin MOritz |
| Moritz | Moritz Neumueller |
| m-arlon :-) | michael |
| m.c.s. | Brabetz, Hannelore |
| m3 | frauen computer zentrum |
| mac42 | maC. |
| mace | Marc_Mueller |
| macv235 | Herbert Taeubert |
| madbern | Madeleine Bernstorff |
| madmax | Max Bareis |
| maho | maho |
| maikro | michael kronberger |
| mailbox | Stefan Greh |
| mainz | Heidi Schmidt-Bartl |
| maja | Sabiene Maja |
| malavasi | Marco Malavasi |
| malo | Mario Meier |
| malz | Isi Walla |
| mannimike | Manfred Michels |
| marco | Marco Limberg |
| marcos | markus |
| marflow | Hendrik Rama |
| margitta | Margitta Fahr |
| mario | Mario Schmidt |
| mark | Mark Olsom |
| markgraf | alexander girstl |
| markus :-) | Markus Wirthmann |
| marpo :-) | Martin Potthoff |
| mars | Stefan Neumann |
| martin | Rainer Martin |
| martin_g | Martin Grabenstein |
| marvin | Lars Bruhn |
| matteo | Matteo Burioni |
| mazeway :-) | Horst Kloever |
| mctrade | Franz Schoepfer |
| mdoerr | Michael Doerrschuck |
| mdt :-) | Michael Dietrich |
| mego :-) | Andreas Pieper |
| melm | berger |
| mensing | Peter Mensing |
| mercedes | Mercedes Bunz |
| merlin | Ralf Hesse |
| mey | Thomas Meyer |
| mezen | Medienzentrum Prenzlauer Berg |
| mfz :-) | Museum fuer Zukunft |
| mib :-) | MedienInstitut am MD Berlin |
| mic | Mic Jogwer |
| micha | Michael Dohmann |
| michael | Michael Beck |
| michaj | Michael Jahn |
| microft | Crispin Schroeder |
| microprint | Rudolf Bührer |
| micz | micz |
| middendorf :-) | angelika middendorf |
| midway | Michael Ernst |
| mieg :-) | Michael van Eeden |
| miha | Michael Haberkorn |
| mikef | |
| mindtech | Alexander Jivanjee |
| minus | Johannes Beck |
| mir | Lang Miriam |
| mmm | Martin Schauer |
| mmorph :-) | Kay Itting |
| mohoax | Moriz Hoffmann-Axthelm |
| moles | Andreas Schmidt |
| moniteurs | - Moniteurs |
| mos | M.O.S.Radio |
| moschokokeks | Moritz Meinesz |
| mot | Juergen Schaefer |
| mouche | Frans Vliegenberg |
| movado | MOVADO e.V. |
| mrzero | Keith Sanborn |
| msch | Markus Schulze |
| msj | Michael Schlieper |
| mtribe | Mark Tribe |
| musicus | Djuro Dorner |
| mutil :-) | Juergen Schaefer |
| mweber | Martin Weber |
| mythos | MICHIEL THISSEN |
| mz | Michael Zapp |
