Berkeley-area Doctors as Mashup: Chad Dickerson has created this interesting and useful application through the Yahoo Maps API and some clever screen-scraping of HTML data. (Many of the best mashups require a dose of creativity outside the purely ‘approved API’ box.)
VGMap: Is another creative combination, this time it’s Flash-based vector graphics and the Google Maps API which together deliver New York City Subway in a new form. From Michael Frumin at Eyebeam.