operating systems(1139 Web Sites)
- www.2000trainers.com
- www.4front-tech.com
- www.99er.net
- www.a1poweruser.com
- www.abend.org
- www.abisource.com
- www.abisource.org
- www.abiword.com
- www.accelerated-x.com
- www.achilles.net
- www.acl.com
- www.actionsoftware.com
- www.activedir.org
- www.adminschoice.com
- www.adobe-direct.com
- www.adobe.com
- www.advtoolware.com
- www.aelius.com
- www.aiedv.ch
- www.aklug.org
- www.ale.org
- www.alexander.com
- www.alexanderlan.com
- www.algometric.com
- www.allaire.com
- www.allegro.cc
- www.allitcertkiller.com
- www.alpenjaeger.com
- www.alsa-project.org
- www.alsaplayer.org
- www.amicusattorney.com
- www.amsoftware.com
- www.anneke.net
- www.annoyances.net
- www.annoyances.org
- www.apache.org
- www.apache.rediris.es
- www.apachelabs.org
- www.aplawrence.com
- www.appache.com
- www.appbuilder.com
- www.appworx.com
- www.aquaminds.com
- www.arabeyes.org
- www.arbutussoftware.com
- www.archicad.com
- www.arciem.com
- www.arclinux.org
- www.aries.apache.org
- www.arklinux.com
- www.arklinux.org
- www.arkos.net
- www.artage.com
- www.arts-project.org
- www.as400tcpipprinting.com
- www.aspg.com
- www.assimilator.com
- www.asternic.org
- www.astrom.se
- www.atheos.cx
- www.atheos.org
- www.atlas.aicanet.it
- www.atlguide2000.com
- www.atomsync.com
- www.attachmate.com
- www.attentionsoftware.com
- www.aurox.org
- www.austinlug.org
- www.avanti-tech.com
- www.avitek.com
- www.avivasolutions.com
- www.avro.apache.org
- www.backupedge.com
- www.badpenguin.org
- www.bainsware.com
- www.balug.org
- www.barebones.com
- www.bastille-linux.org
- www.bbca.com
- www.bccomputertutor.com
- www.bcsc.net
- www.bea.com
- www.bebox.nu
- www.beehive.apache.org
- www.begroovy.com
- www.beijinglug.org
- www.belchfire.net
- www.betaos.com
- www.betips.net
- www.beunited.org
- www.bfarber.com
- www.bglug.ca
- www.biap.com
- www.bibletime.info
- www.bigfix.com
- www.bimoyle.com
- www.bink.nu
- www.bitrot.de
- www.blackholeinc.com
- www.blacksmith.com
- www.blogs.apache.org
- www.blue-omega.com
- www.bluedays.com
- www.blueeyedos.com
- www.bluephoenixsolutions.com
- www.bmc.com
- www.boards.icq.com
- www.bosbc.com
- www.boss-solutions.com
- www.braindumps.net
- www.brainshare.com
- www.breadbox.com
- www.broderickdata.com
- www.bsafesolutions.com
- www.bsdatwork.com
- www.bsdforums.org
- www.bsdvault.net
- www.bsdzone.net
- www.bugi.redbrick.dcu.ie
- www.bugnet.com
- www.buildr.apache.org
- www.businesslink.com
- www.bvstools.com
- www.bytware.com
- www.cadigital.com
- www.calcaria.net
- www.caldera-systems.com
- www.caldera.com
- www.calderasystems.com
- www.californiadigital.net
- www.calmira.de
- www.calug.com
- www.canpay.com
- www.cantonlinux.org
- www.capitalbusiness.com
- www.capitolsoft.com
- www.cardett.co.nz
- www.careers.intuit.com
- www.carlc.com
- www.caudium.net
- www.cbttape.org
- www.ccsscorp.com
- www.ccur.com
- www.cdrfaq.org
- www.cedarlug.org
- www.cedarsystems.com
- www.centerfieldtechnology.com
- www.centurysoftware.com
- www.certifydev.com
- www.certifypro.com
- www.certmag.com
- www.cesoft.com
- www.cfalliance.com
- www.cheapbytes.net
- www.chicago-soft.com
- www.chipchat.com
- www.cialug.org
- www.cinema4d.de
- www.cinlug.org
- www.clear-simple.com
- www.clearphone.com
- www.clearskyinstitute.com
- www.clientsoft.com
- www.cluedenver.org
- www.clug.org
- www.cms.ca
- www.cntrlsolutions.com
- www.codehost.com
- www.colesoft.com
- www.colesoftware.com
- www.colinux.org
- www.colug.net
- www.commandtechnology.com
- www.computer-tips.com
- www.computerbank.org.au
- www.conectiva.com
- www.conglomerate.org
- www.convergence.org
- www.core.de
- www.corel.com
- www.cornfed.com
- www.cosmoe.com
- www.cowlug.org
- www.coyotelinux.com
- www.cpm.z80.de
- www.cramsession.com
- www.crashrecovery.org
- www.crushftp.com
- www.cryptography.org
- www.ctlug.org
- www.cycas.de
- www.cycas.de
- www.cyclades.com
- www.cygnusapp.com
- www.cyrusoft.com
- www.daemonnews.org
- www.damnsmalllinux.org
- www.dantz.com
- www.darwinfo.com
- www.darwinfo.org
- www.darwinsys.com
- www.data21.com
- www.databeast.com
- www.datadesigninc.com
- www.datanets.ro
- www.datvsn.com
- www.dcmsi.com
- www.debianhelp.org
- www.debianlinux.net
- www.debianplanet.org
- www.debugcics.com
- www.decus.ch
- www.defcon1.org
- www.dependencywalker.com
- www.derkarl.org
- www.detailersdepot.com
- www.devicelogics.com
- www.devil-linux.com
- www.devil-linux.org
- www.digi.com
- www.digi.de
- www.digi.de
- www.dignus.com
- www.dino-software.com
- www.directfb.org
- www.discreet.com
- www.diskjockey2000.com
- www.disklessworkstations.com
- www.distrowatch.com
- www.dll-downloads.com
- www.dll-files.com
- www.dosemu.org
- www.doublewide.net
- www.douglas.com
- www.dpewen.com
- www.drdos.com
- www.drdos.net
- www.drdosprojects.de
- www.drdosprojects.de
- www.drivershq.com
- www.drivevaccine.com
- www.dropletinc.com
- www.droplets.com
- www.dssw.co.uk
- www.dtssoftware.com
- www.dvotion.com
- www.e-smith.org
- www.e-vse.com
- www.e2center.com
- www.easydos.com