DIY/Home improvement boards

DoItYourself Community Forums
Handyman Club of America
Home Repair Forum
SelfHelp Forums
HVAC-Talk (no DIY)
GardenWeb
Stuccocompany.com
LawnSite

Bob Vila How-to Videos

Ask Weldin (HVAC advice)

Small engine repair
Repair FAQ
MyTractorForum

Automated unit test generation/white box testing

Java:

Randoop

.Net:

Pex

Change your Windows desktop background automatically

Download Wallpaper Juggler

Let the software download wallpapers, or download from hiren.info, wallpaperstock.net, interfacelift.com

Other wallpaper sites: Social Wallpapering

Research papers online

Economics,

RePEc

EconPapers

National Bureau of Economic Research

Application Launchers

QuickSilver, granddaddy on Mac

Windows launchers:

DoMercury

SkyLight

WinSilver

Launchy