Background Noise In Open Plan Offices

A colleague sent on these useful links (ironically, I sit opposite him) that are background or ambient noise generators to drown out the noise of co-workers talking, and generally making noise:

• http://coffitivity.com/
• http://www.simplynoise.com/
• http://rain.simplynoise.com/
• http://www.zendesk.com/wall/
• http://www.birdsongradio.com/radio-birdsong-listen.php
• http://www.resonance-asm.com/