These are links to resources we find useful to have in mind.
We've ordered them by subject:

Internet:
http//:www.learnthenet.com

Windows:

Word:

Webmaster resources:
http://www.networksolutions.com/cgi-bin/whois/whois
http://www.dotregistrar.com/
http://www.register.com
http://www.thefreeguide.com/
http://www.aspin.com
http://www.freecode.com
http://www.worldwidemart.com/scripts/
http://www.javascripts.com
http://javascript.internet.com/
http://www.draac.com/
http://www.everyone.net/
http://www.developy.com/
http://www.interhelp.org/
http://www.losrecursos.com/
http://web1.multicity.com/webmasters/index.shtml
http://www.atomz.com/
http://www.logotypes.ru/
http://www.simplesubmit.com/index.html
http://www.netmechanic.com/powerpack/add-url.htm?link=remESFT#free
http://www.freewareweb.com/

Dreamweaver:
http://www.macromedia.com/software/dreamweaver/trial/

Fireworks:
http://www.macromedia.com/software/fireworks/trial/

Flash:

Sounds:
http://www.wavcentral.com
http://www.flashmaster.nu/flash/index.htm
http://welcome.to/Flashwavs
http://www.soundamerica.com/sndmenu.htm
http://metalab.unc.edu/pub/multimedia/sun-sounds/sound_effects/
http://www.thefreesite.com/freesounds.htm
http://www.flashworld.com.br/
http://www.flashmaster.nu/flash/index.htm
http://members.xoom.com/deaning/flashtrax
http://www.3Dcafe.com
http://www.djthunder2000.com (mp3)
http://www.marceloteoro.com.br (mp3)
http://www.samplenet.co.uk
http://welcome.to/Flashwavs
http://www.flashmaster.nu/flash/index.htm
http://www.soundamerica.com
http://www.soundamerica.com/sndmenu.htm
http://metalab.unc.edu/pub/multimedia/sun-sounds/sound_effects/
http://www.thefreesite.com/freesounds.htm
http://www.fly.to/wavsloops/
http://www.wavplace.com/sounds.htm
http://www.maz-sound.com/
http://www.languageservices.com.br
http://members.xoom.com/deaning/flashtrax
http://members.xoom.com/deaning/deano
http://www.3Dcafe.com
http://wavcentral.simplenet.com/
www.moviesounds.com (de películas)
www.flashkit.com
http://www.soundamerica.com/sndmenu.htm
http://metalab.unc.edu/pub/multimedia/sun-sounds/sound_effects/
http://www.thefreesite.com/freesounds.htm
http://www.fly.to/wavsloops/
http://www.wavplace.com/sounds.htm
ftp.ni.net/cust/atkins.com/Skydisc/christimas99
http://www.flashworld.com.br
http://welcome.to/Flashwavs
http://www.soundamerica.com
http://members.spree.com/sip/wavrider/index.html
http://www.music4flash.com/
http://wav-emporium.forsite.net/wav10.htm
http://www.wavcentral.com/
http://www.wavhounds.com/
http://www.musiconline.com.br/
http://www.earthstation1.com/
http://www.audiofind.com
http://welcome.to/flashwavs
http://www.music4flash.com/
http://www.wavplace.com
http://wav-emporium.forsite.net/
http://www.dailywav.com
http://www.slonet.org/~rloomis/index.html
http://indiana.net/~ctrlra/noise/
http://users.ev1.net/~atog/sound.html
http://geocities.com/caleck440/
http://jump.to/mp3
http://www.flash4all.de/
http://www.iconmusic.com/multimedi

PHP:
http://www.php.net
http://web.phil-fak.uni-duesseldorf.de/~hesspa/phpClass/start.php3
http://www.darkseed.net/main.php3?page_id=7
http://www.egroups.com/group/php-pt
http://web.phil-fak.uni-duesseldorf.de/~hesspa/phpClass/start.php3
http://lists.allfinder.com.br/php/
http://www.weberdev.com/menu.php3
http://phpwizard.net/

ASP:
http://www.devguru.com
http://www.asp101.com
www.tci-ip.com
www.15seconds.com
www.learnasp.com
http://www.aspsite.com
http://www.devx.com
http://www.activeserverpages.com
http://www.aspin.com
http://go.to/legal
http://www.asptoday.com/
http://www.aspbrasil.com.br
http://www.ctsoft.softex.br/mauricio
http://orbita.starmedia.com/~accessbrasil/pgina.htm
http://www.asp-brasil.com.br
http://www.dueto.com.br
www.aspmasters.cjb.net
www.msdn.microsoft.com
www.aspfree.com
http://www.o2kconsulting.co.uk/udtutorials/login/tutorial.asp
http://www.aspupload.com (para hacer upload de files al server via browser)
www.freeasp.com
http://www.takempis.com/
http://www.hiran.desilva.com/ultradev/
http://www.asptoolbox.net/
http://www.hiran.desilva.com/ultradev/
http://www.ultradevguru.com
http://www.brainjar.com/