Sound logos

Sound logos for various things: http://en.wikipedia.org/wiki/Sound_trademark

Intel.Inside

NBC http://web.archive.org/web/20070307110031/http://www.uspto.gov/go/kids/soundex/72349496.mp3

AT&T  http://online.wsj.com/article/SB10001424052970203718504577182951405815364.html

THX deep note:

Nokia tune http://en.wikipedia.org/wiki/Nokia_tune

Mac startup sounds:

http://youtu.be/xNgl_MjbAsM

Massive index of boot sounds:

http://titan08.free.fr/Boot%20Sounds/

Royalty Free Audio Logos: http://www.premiumbeat.com/royalty_free_music/audio-logos