Two small but useful Google services are no longer available. Click-to-call, the Google Maps feature that allowed you to call a business for free in the US, was removed. "This feature was a long-running experiment, and in the end it was decided to discontinue it. There are however lots of other features we're adding to maps in the hope of making it even more useful," says a Googler who recommends trying GOOG-411, an automated voice-based mobile search engine. You can also try Microsoft's local search engine, which continues to include a click-to-call feature.
Haochi Chen was reminded of that strange day from October 2006 when Google's Official Blog was hacked and somebody posted that "Google has decided not to continue with Google Click-to-call project". Apparently, he was right.
Another discontinued service is Related Links, that showed links to news, videos and searches related to the content of a page in a small box which looked similar to an AdSense unit.