Be aware also that what looks like a legitimate link and even goes to the link it appears to represent may still be a fake.

Spammers and scammers make a practice of registering fake site names that closely resemble legitimate ones.

A few people were infected not too long ago by responding to an emai that substituted "red-hat" for "redhat" - or maybe it was the other way around. And while "whitehouse.org" is a known source of all kinds of crud, whitehouse.com is a completely legitimate porn site.

There is, or was a few months ago, a "legitimately registered(?)" site called "microsfot.com," apparently a sufficiently common "typo" to get them useful traffic for whatever their prupose was.

John