From the command line:
sudo mdutil -E /
sudo mdutil -i on /
The amount of time this will take depends on how many files are on your hard drive.

If you need a driver for HP Printers on Apple OS X Lion, you can download it from here:
Apple HP Printer Pacakge
The full list of compatible model printers it works with are here.

One of the issues being reported with the Apple iPad is that it looses it’s wireless network connection and then has a very hard time reconnecting.
I ran across this bug in the field where I had 6 iPads scattered around a football field, and two (or more) Apple Airport Extremes connected in WDS mode. The [...]

Spaces is OSX’s cool virtual window program that allows “multiple” desktops to be setup. The thought is that it allows you to group programs together by task and thereby increasing your workflow productivity.
Apple has a great tutorial on how to really maximize it’s usefulness.
But some of us want to tweak it’s usability. For instance [...]

MacDefender and MacProtector are the latest in “anti-virus” protections that are actually malicious themselves. These are targeted towards Macs specifically, but are NOT virus. These are trojans, and can be picked up by visiting malicious sites.
To disable:
As an admin user (most are by default)
Open up Terminal and type: sudo killall MacDefender
Substitute MacProtector if that’s the [...]