Today at Where 2.0 Yahoo announced the release of Placemaker, a new "geo-enrichment" platform. The freely-available platform, which includes an API (our Placemaker API Profile), enables developers and publishers to make applications and data sets location-aware by determining the "whereness" of unstructured content (such as blog posts, new articles, feeds, and web pages).
At Mashup Camp last week each attendee was given one wooden nickel with which to vote for their favorite mashup. Then on both days there was a "Speed Geeking" session during which attendees rotated through the Great Hall getting 5 minute demos from each of the 20+ mashup contestants.
This fall the New York City Mayor's Office of Film, Theatre and Broadcasting will celebrate its 40th anniversary with the publication of a book, Scenes From The City, and a series cultural events across the city. But in addition they have created an excellent web mashup: Scenes from the City Interactive Map.