When this happens again, do us a favor and try hitting
http://www.webflyer.com. That site resides in the same data center as FlyerTalk, and it may give us a better idea of what's causing these blockages.
If you know how to do a traceroute, running one on FlyerTalk the next time this happens, and posting the results here, would help us out as well.
Traceroute How-To:
(PC)
http://www.hostroute.com/supportcentral/traceroute.html
(Mac)
http://www.verio.com/support/view_ar...fm?doc_id=3693