A nice google maps mashup about election results.

Includes a great map, plus septa on google maps and other features.

This is not an official site. However, it takes the data from the Philly Inquirer for the city in 1999, and for West Philadelphia from the Almanac and maps it in Google maps. A neat site, worth looking at.

Map of Philadelphia Police Districts

A map of various violent crimes in city police districts in 2007

An interactive map of Philadelphia homicides in 2007 from the Philadelphia Inquirer

An interactive map of murders in the city of Philadelphia in 2006 from the Philadelphia Inquirer.

Documents the street name changes within Philadelphia Streets.  Try multiple variations of the street name to find it.

From policymap.com, you can access all of the information you need about a place without having to visit multiple websites or task staff and consultants with collecting and analyzing data. Policymap.com houses thousands of indicators related to demographics, real estate markets, crime, schools, housing affordability, employment, energy and public investments. Much of this data is available to the public for free — other proprietary data, such as demographic and employment projections, and home sale trends — are only available to paying subscribers. All data comes with brief, reliable, easy-to-understand definitions. For a complete listing of data available in policymap.com, please refer to the Data Directory link in the upper right of the web page. TRF hopes that you will suggest other datasets you’d like to see incorporated into PolicyMap. Click on the Suggest a Dataset link at the bottom of the web page to send us your ideas.

Includes beautiful maps and atlases of the Hexamer Volumes from the 1850's through Philadelphia Land Use maps 1960's.

The City of Philadelphia provides maps of City Services, service areas, and zoning rules.

Index to Aerial photos of the Philadelphia area taken between 1924 and 1960 held at the Library Company and (some) at the Free Library of Philadelphia.

NeighborhoodBase includes maps and data from a number of city agencies, plus census data. All data is available for aggregation at a range of geographic levels (ie, wards, census tracts, etc). A great source for data and maps about life in Philadelphia.

This site is a non-profit, freely browsable database of crimes reported in Chicago.

It is not affiliated with the Chicago Police Department or with Google Maps. It is not an official source of crime information for the city of Chicago. Rather, it is an alternative view of public record that is available elsewhere.

This is an effort to bring together some resources -- images, documents, tools, and links -- for pursuing historical information about place in the five-county Philadelphia area: Bucks, Chester, Delaware. Montgomery, and Philadelphia counties. The project has been building incrementally, as opportunities have permitted, since 1997. The overarching idea is to use new media to more effectively disseminate information about place, to enhance cross-institutional access to documentary materials of this sort, to better connect people with the history of their environment, and to thus enrich their lives here.

A town by town guide to who holds sanborns throughout the country and for which years. Wonderful resource.

An exhibition created to demonstrate the power of maps to understand, navigate, and manage not only physical places, but also abstract information spaces.

Google maps mashup includes data on population, housing cost, housing market, schools, safety, health, climate, income/work, and age ethnicity for the continental US.

annoyingly, their "explains" don't say where the data comes from, so it's hard to know how up to date it is. However, it's neat.

Phila City Planning Comission outline map of Philly census tracts.

Great collection of maps.

This article examines the Neighborhood Transformation Initiative (NTI), Mayor John F. Street’s plan to revitalize Philadelphia’s distressed neighborhoods by issuing $295 million in bonds to finance the acquisition of property, the demolition of derelict buildings, and the assembling of large tracts of land for housing redevelopment. Despite its resemblance to the discredited urban renewal programs of the past, this plan offered real potential for reducing blight by leveraging substantial private investment at a time when public subsidies
for affordable housing and community development have been steadily diminishing.

However, NTI did not promote equitable development that might have fostered broader support for an inherently controversial plan. Moreover, Street’s initial leadership in proposing this bold initiative was followed by a reluctance to promote NTI aggressively after it was adopted in 2002. The  result was a watered-down effort that achieved some goals but has fallen short of what might have been accomplished.

HIMAL SOUTH ASIAN | June 2003 |

Gutenkarte is a geographic text browser, intended to help readers explore the spatial component of classic works of literature. Gutenkarte downloads public domain texts from Project Gutenberg, and then feeds them to MetaCarta's GeoParser API, which extracts and returns all the geographic locations it can find. Gutenkarte stores these locations in a database, along with citations into the text itself, and offers an interface where the book can be browsed by chapter, by place, or all at once on an interactive map. Ultimately, Gutenkarte will offer the ability to annotate and correct the places in the database, so that the community will be able construct and share rich geographic views of Project Gutenberg's enormous body of literary classics

Easy way to compary google maps images with local live. Really nice display.

Acme Mapper shows DOQ and Topo maps for the US and allows lots of other cool things.

The maps presented on this website are cartograms, otherwise known as density-equalising maps. The maps of the world you are used to seeing attempt to represent countries according to their land area. A cartogram re-sizes each country (or other geographical unit) according to some other variable - for example population, GDP, number of people with AIDS, etc. In the population example, densely-populated country such as the UK will appear much larger than it does on a standard map, and sparsely populated countries will appear smaller.

Major area polluters on google maps.

County maps of the US by religious affiliation.

Here are examples of different ways of projecting the Earth's surface and a brief discussion of the pros and cons of each of the methods.

The US Census provides thematic maps at various levels of geography and for many data points.

Allows users to store, tag, and share locations -- based on google maps, but does interesting things. Users add photos of places, and lots of other tagged info about the places.

Historical Maps plus GIS from the David Rumsey Collection.

While many businesses were in the path of these storms, some were affected and others were not. Knowing where affected businesses are concentrated can guide efforts by Federal, State, and local agencies, service organizations, and entrepreneurs to respond to the storms and rebuild the economies of these areas.

In this interactive web site, you are able to select a city or metropolitan area and view the location of high-poverty census tracts and observe the growth of high-poverty areas over time. In addition, you may view the changing demographics of the population. All of the maps here are based on U.S. Census data from 1970 through 2000. The data are summarized at the neighborhood level, using Census Tracts as proxies for neighborhoods.

The United States Census provides thematic maps for many of the data elements available through the Census.

Maps votes in the 2003 California Election by pixel rather than county to show a more accurate view of the vote distribution based on population rather than area.

Twentieth century conditions in maps.

The map images as well as the satellite imagery belong to Google and are pulled from maps.google.com. The data is extracted from the 2000 United States Census and can be downloaded from www.census.gov.

Geographic Information Systems (GIS) software relies on data sets that cover the whole planet. To cope with the flood of GIS data and their formats, programmers have created several open source libraries and GIS suites. This article gives a short introduction to the range and depth of GIS tools and libraries available for UNIX® and Linux®.

The literary map of Pennsylvania is a graphic display of the literary history of our Commonwealth. On the map you'll find writers of novels, plays, short stories, technical manuals, legislation, children's literature…just about anything you could imagine connected to writing.

Click on a county to see authors from that county with biographies and lists of works. 

EDINA is actively seeking global and regional geographic datasets which can be made available to the UK Higher and Further Education community. Many global datasets are now being published via web map servers and are accessible through the use of interoperability standards. EDINA have created a Web Map Viewer, which will allow anyone with Internet access to view geographic data available through web map servers around the World.

Census page listing Hurricane Katrina related info.

List of data sets available from USUS. Huge and quite up to date.

List of data sets available from USUS. Huge and quite up to date.

he World Health Organization Collaborating Center for Remote Sensing and GIS for Public Health (WHOCC) at LSU is dedicated to the application and advancement of geographic information science (GISc) and geographic technologies for Public Health and disease modeling.

Federal Gateway to information about Katrina in New Orleans. Includes maps, GIS data, interactive mapping packages, etc.

Collection of data and maps from UCGIS related to Katrina and New Orleans

Discusses the way that Jersey City, Boston, and another city are imagined by long time residents. A pivotal work in showing how people imagine cities and in what kinds of markers make sense to people as they think about cities.