In 1999 (I think that that is the timing) I was invited to go to Phoenix (on their dime) to visit a company (visitalk.com) with grand plans to build a "internet phone directory" mostly aimed at NetMeeting users. At the time I had some standing in the NetMeeting world being one of two Microsoft NetMeeting MVPs (the other was Robert Scoble of Scobleizer fame). I wasn't totally sure why I was invited (maybe it was a job interview?) but I found out they had grand expansion plans, somewhat vague business plans, and apparently $50 million dollars that they were burning through at a furious rate.
When I returned I added a mini review to my NetMeeting information site. Shortly after that apparently the money ran out, visitalk.com declared bankruptcy and that seemed the end of it.
But the site www.visitalk.com stayed. To this day at least 7 years after bankruptcy it continues to operate -- apparently able to take payments for the internet service that I doubt still operates.
A true ghost from the past.