From: tholen@antispam.ham   
      
   I thought Firefox was pretty good at dealing with incomplete URLs.   
   For example, if you type usatoday.com into the location bar, it   
   automatically changes it to www.usatoday.com and goes to that   
   location.   
      
   However, on Sunday, I typed irs.gov into the location bar, and   
   Firefox reported that irs.gov was taking too long to respond and   
   suggested that I try again later.  So I tried later.  Same result.   
   And later still.  Same result still.  Tried next day.  Still the   
   same result.  Then I decided to try www.irs.gov, and it connected   
   me to the web site right away.  Went back to the other tab with   
   just irs.gov as the URL and tried again, and it still said the   
   site took too long to respond.  At no time did it respond with a   
   404 Not Found.   
      
   So what's going on here?  Does the IRS actually have two different   
   web sites, one with the irs.gov URL and another one with the   
   www.irs.gov URL, the former being associated with a computer that   
   was too busy to respond and the latter being associated with a   
   high level of accessibility?  Why else might one work and not the   
   other?   
      
      
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