Transid's RER Tweet Map is a heat map of over 4,000 Tweets in Paris that mention the RER (Paris' rapid transit system).The map uses the new HeatMap layer in the Google Maps API. This visualisation of the Tweets quickly reveals that (maybe unsurprisingly) that many people mention RER when they are at a station or when on a train.The map includes a number of options that allow you to adjust the display of the HeatMap layer on the map. The Google Maps API gives developer options to adjust the radius of data points, the opacity of the layer and the colors used. Transid's RER Tweet Map has created buttons to allow the users to change these elements themselves to adjust how the heat map displays on the map.
Triposo is a worldwide travel guide that seamlessly pulls in travel related content from sources across the web.Using information from sources such as Wikitravel, Wikipedia, TouristEye, and Flickr Triposo is able to provide travel guides for countries and cities throughout the world. The guides provide a complete overview of things to see and do, places to eat and to go out, all ordered by relevance from the traveler's perspective.Google Maps are used throughout Triposo to help you find the correct guide for the country, city or neighborhood that you require.
If you are planning a vacation and are wondering how far your budget can get you then you should try Flocations.Using Flocations it is possible to discover which flights are available and to which destinations for a set price. Just use the slider control to enter how much you want to pay for your flight, enter your available dates and select your departure airport from the drop-down menu.After you have entered an airport and a budget all the available flights in your budget are displayed on the map. If you select a destination shown on the map you can then view the flight details and click on a link to book your seat. At the moment Flocation only works for a number of South East Asian and Australian airports but new airports and destinations are being added to the application all the time.
In 1812 the United States of America declared war on the United Kingdom thereby beginning the War of 1812.Brock University has put together an interactive display of geo-referenced historical maps examining some of the invasions of Upper and Lower Canada. The War of 1812 in Maps allows the user to view historical maps of locations of significant battlefield sites and compare them to the current landscape.The application overlays the historical battlefield maps on top of Google Earth (using the Google Earth plug-in). The user can navigate to the maps by using the links in the map sidebar. It is also possible to adjust the transparency of each map by using a map transparency slide control.
Bostonography is running a project to find out where Bostonians believe their neighborhood boundaries lie. The project is using a Google Maps tool which allows participants to draw on a Google Map where they think Boston neighborhood boundaries run. This has allowed Bostonography to create a map of all the amalgamated responses so far. 
The results for each neighborhood are also being analysed to see which neighborhood boundaries participants have a strong agreement about and to highlight areas where there are contradictory opinions about which neighborhood they belong to.
The Dictionary of Sydney has put on-line a collection of historical maps, The Atlas of the Suburbs of Sydney. The Atlas is a series of maps of Sydney created by map makers Higinbotham, Robinson and Harrison in the late-nineteenth-century.You can view each of the maps overlaid on Google Maps by selecting the 'full record' link provided with each map (click on a map image, then select 'full record'). Once the map loads you can use the familiar Google Maps navigation tools to explore the historical Higinbotham, Robinson and Harrison map in detail.Via: All Things Spatial
