Artists
Agraphie: Deformation and circle cutters
Autistici: Experimental ambience and soundscapes
Bllix: Fingers and vu vuuuuuu.
Build: The need to communicate through other things, whether that be art or music or whatever.
David Shrigley: Try to be happy
Disastrato: Presentations of handmade monsters and creams
Effacer: Sound as sculpture.
Fredo: Choirboy meets the laptop :P
He can jog: An attempt to work within familiar structures!
Küf: PoeTerrorismusic and dream works
Magnetmus: Remember the Plastikman videos for disconnect and psyk?
Manabu Yamanaka: Photography, a link from p. to c.
Prhizzm: Millions of heart-beats.
Prugelknaben: Versatile. "I Can't believe he isn't famous."
Ricemutt: Spiritual anti-electronic music
Room: A beautiful flower.
Run / Diemaus: Fun to the floor.

Labels
Audiobulb Records: Exploratory electronic music
Biv0uac: A not-for-profit electronic noise music and arts label
Hippocamp: Manchester based full 'netlabel' featuring music from artists all over the world.
Kikapu: is primarily a net label.
Le son 666: A collective of independant artists
Luv: is a netlabel based in milwaukee wisconsin.
Sahipsizinsesi: is founded to release electronic and acoustic recordings from Anatolia and Thrace.

Sources
Artists with issues: Support and Community for Musicians Battling Addiction
Audiofanzine: Webzine des musiciens et amoureux du son.
Babylon: Building it 1 more time ?
Bartleby: Great books online.
Etexts: Public domain electronic texts in the areas of American and English literature as well as Western philosophy.
Instructables: is a venue for showing what you make and how others can make it. 
IPA: the International Phonetic Association
NYPL Digital: New York Public Library digital collections.
Omniglot: A guide to writing systems.
Onlinebooks: Listing over 20,000 free books on the Web.
Questia: The World's Largest Online Library.
The Freesound Project: is a collaborative database of Creative Commons licensed sounds.
UbuWeb: is completely free.
Wikipedia: The free encyclopedia.

Mags / Blogs / Mailing lists
Absorb: An online resource dedicated primarily to electronic music.
Colors magazine
De:Bug: German :(
Earlabs: a public stage for composers who wanted to have central spot on the net.
Found: A collection of found objects, images, notes etc.
Igloo: Electronic music magazine.
Microsound: is an unmediated mailing list oriented toward discussion of the styles of digital and post-digital music promulgated by the proliferation and widespread adoption of digital signal processing (dsp) tools.
musicalbear
netdiver: Devoted to tutoring, empowering and stimulating creativity as well as excellence in design projects by the international community involved in the design industry and beyond!
Pixelsurgeon:  is a digest of the creative, strange and interesting from the internet...
Tiger: A screen magazine.
woostercollective: is dedicated to showcasing and celebrating ephemeral art placed on streets in cities around the world.
Wulffmorgenthaler: :D