Procrastinators Anonymous is a fellowship of men and women who share their experience, strength and hope with each other that they may solve their common problem and help others to recover from chronic procrastination.

Soothing noises

First, thanks to Cal Frances who posted the link in chat.

The following links are noise generators for white noise, nature sounds (rain, brook, waves, wind, rustling leaves, birds, ...), and other background sounds.

I found them to be very helpful when the task I'm working on is scaring and stressful.

SimplyRain (a subpage of SimplyNoise)
Free Nature Sounds Mixer (allows you to mix, say, cicadas, North American flutes, kitchen sounds and Darth Vader's breathing)

I'm sure a lot more such sites exist.