An 8.8 magnitude earthquake struck Chile about 115km (70 miles) north-east of the city of Concepcion and 325km south-west of the capital, Santiago.
Links to make a donation can be found on Google's Chile earthquake relief page:
Open Shops Map
Paniko has put together this Google My Map, called Mapa Comercio Activo, to show the locations of supermarkets that are still operating in Chile after the earthquake.
The map is set as open collaboration, so anyone can add open stores to the map.
Ushahidi has produced this Google Maps mashup to track the latest news and incidents related to the Chile earthquake.
The map reports incidents such as collapsed roads and buildings to try and provide as much up-to-date news for Haitian citizens as possible. It is possible to submit information to the map by completing a short form.
Ushahidi have also integrated Google's Person Finder gadget and a live Twitter stream of news from Chile.
Real Time Tools Earthquake Map
The Google Maps for Flash API mashup uses data from the USGS to show the latest earthquakes around the world.
The site uses different sized red circles on the map to show the scale of earthquake activity at different locations. If you roll over the red circles details about the magnitude of earthquake and the time of measurement is given.
Chile Earthquake Tweets
Mibazaar has put together this real-time Twitter map showing the latest messages about the Chile earthquake. Currently the map is displaying Tweets from around the Santiago area, with an option to view messages from Hawaii, which is currently under a Tsunami warning.
Earthquakes in the Last Week
This map shows recent earthquakes around the world. It also includes the latest earthquake news. The map uses different coloured map markers to show the strength of different earthquakes.
Real-time USGS Earthquake Mapplet
This mapplet plots the past week of earthquakes around the world, showing the location, time and magnitude. Each earthquake includes a link to the USGS earthquake website for more information.
USGS Real-Time Earthquakes
This map uses the Google Earth browser plug-in with the USGS's KML of the past 7 days' earthquakes.
This Google Earth browser plug-in tool also works with other KML's. Just replace the KML address in your browser address bar to view other KML's in the plug-in.