The Google Maps API team maintains many Google Maps APIs and SDKs. Manually tracking updates across the various sets of Release Notes presents a challenge for developers. Google now offers auto-updates to Maps Release Notes via RSS feeds. RSS feeds for all Maps and Places APIs are available.
The latest release of desktop Twitter app TweetDeck launched with a ton of new features, which includes showing geolocated tweets. If a tweet includes the location meta-data, TweetDeck shows a tiny marker icon. Click the icon and you get a map of the location.