As pre-warned, Yahoo is closing the legendary GeoCities software today.
This is a serious thing on the search front. Let's not forget what Google's, JohnMu, Tweeted "Surprised at how many serious sites are hosted on GeoCities: get a domain name and move your stuff out NOW!" Now he would know the value of some of these GeoCities sites.
Yes, if you have not moved your content, images, videos and sites to a new platform - they will likely be forever gone and forgotten.
An end of an era
Forum discussion at WebmasterWorld.