I have also received this email. But believe me after registering to it I have never used this service provided by yahoo and i think same for all who have registered to it. So that might be the reason as it is not at all popular!
i got the email too, wasnt sure if it was real. but its not surprising seeing how its not as used as they would like it to be
Yahoo is closing down it's services one after the other. I bet the next in line is Yahoo domains, maybe
I started to use the service, but it just was not appealing to me. At least they are getting rid of things that don't work.
From Wikipedia: "By June 1997, GeoCities was the fifth most popular site on the Web, and by October of that year the company had signed up its millionth Homesteader"
But they don't wanted to sell, so they lost almost everything... it was more easy to creat ur own website so there was no need for geocities, that's why they're closing 360 (we have wp and others). They should focus on the portal...