Could virus prevent me from accessing one specific site?

Answered what turned out to be a scam ad on craigslist for an Apple product and downloaded photos the scammer had sent of the supposed computer. I now find that, while I'm able to get to all other sites, when I put craigslist.com or craigslist.org into my browser, nothing happens. Could scammer have sent me a virus to prevent me from going back on craigslist to post a warning of the scam? (I found a way in by Googling "craigslist" and those links worked.) If this was a virus, what do I do now?
Thanks!

There are no true viruses for a Mac and just an incredibly tiny number of things that can act like one. You have to +deliberately download a program that will install one of those+. While I am sure somebody is trying to make money marketing virus scanners for Macs, currently there isn't really any need for one and I haven't seen a single posting on the Discussions assessing their quality. Since anything virus-like is so rare you have to go through the individual search procedures for each kind.
It's slightly possible to get a DNS redirect trojan, but you'd need to install it...
This one redirects your computer's browser to another website.
Also, beware of MacSweeper, malware itself!
This is a free "virus scanning" program that actually acts like a virus.
The latest one...
http://www.theregister.co.uk/2008/06/23/mac_trojan/
Again, you have to download hte script and run it. It is unlikely this would come in the form of a photo. When you looked at the photo did you actually see a picture?
Next time you have trouble, try putting in these number instead of the name in the url bar...
Computers don't really use name addresses, they use numbers. You may have speed dial for your friend Betty on your telephone but when you press the "Betty" button your phone really dials a number. That is what the IP number is. A DNS number the equivalent of an automatic directory service. You type in a name, the DNS looks its number up and enters it. The DNS trojan takes over the DNS lookup and fakes it to send you to the wrong IP. However, it is possible something else is wrong with your computer or the DNS provider which means this DNS and IP lookup is not functioning correctly. BDaqua was providing you with the numbers for an alternative DNS service and for Craigslist directly. Conceivably the DNS database could be corrupted, though unlikely.

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> These groups are not included in any other group, but they are located
> under an OU -called Remote Users.
>
> In the domain controller I have created a GPO named "Restrict access to
> root drive" which is linked to the Remote Users OU.
>
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