There were very few, but I'll put them here if you don't mind!

On Spyware, hijakers should be hijackers.
On Firewall, invation should be invasion and availabe should be available.
On Extras, maner should be manner.
On More Links, Im should be I'm.

That's all I noticed. I can't think of any other improvements you could make, but, as I said, I'm no expert. I think it's an excellent site and I would have been delighted to find such a clear and helpful site when I was a new user. I've bookmarked it so that I can keep up with future developments.
Ive just thought, you might want to check out a² Free here. It's an excellent free malware scanner which checks for and removes all kinds of malware. I've used it for over a year and, on several occasions, it's found things that both Ad-Aware and Spybot missed.
Madeline.

To err is human; to foul things up totally, you need a computer.