During the past four months we've seen not one but two well known real-time search engines disappear. First there was OneRiot, which in October 2010 decided to focus on advertising. More recently, Collecta closed it's real-time search engine and API to focus on alternative real-time products. Digging further into real-time search offerings you will also discover that crowdeye has also decided to pull its real-time search engine. This now appears to leave Topsy, and of course Google as the main players focusing on building a real-time search destination. Does this trend signal the end for all real-time search engines or just that their focus has been wrong?