At the end of last May, Yahoo released an experimental version of Placemaker, a "geo-enrichment" platform. What it does is help developers make applications location-aware by identifying places in unstructured and atomic content (think RSS feeds, web pages, news, status updates etc.) and returning geographic metadata for geographic indexing and markup. In layman's terms: it can detect places by scanning content and is capable of putting the aggregate data on a map.

While Placemaker does not serve as a geocoder and thus does not perform address recognition on street-level, it is perfectly capable of geo-extracting and indexing documents or atomic units of text, giving third-party developers the means to mark-up and index Web content geographically in a globally-aware, locally-relevant, and language-neutral manner (and Geo Microformats-compatible, too). But the process of parsing the data could sure have been made a lot easier, and if you weren't a developer there wasn't really any use for the tool at all.

Enter GeoMaker, a fresh project by the hands of Yahoo developer Chris Heilmannthat aims to make the whole process more user-friendly. Now it just takes three easy steps to copy-paste content either by directly entering data or by fetching it from a Web address and create a map based on the places the underlying software can identify. It even comes with its proper API.

To see it in action, jump to this non-embeddable Flickr video that shows you how it works. To test it, I entered the URL for a post I wrote yesterday about the apparent geographical differences in terms of level of engagement with social networking services. I don't have access to a free map developer key, or I would have been able to replace the YMAPPID in the embed code with the key and embed the map.