The web makes everything global and yet, everything is also local. APIs allow content and data to be filtered to just the stuff we need. The collection of great mashups below take advantage of those features to show local content to anyone, using location as a filter.
TeachStreet: TeachStreet helps lifelong learners find great classes and teachers, empowering teachers with robust online tools to manage their teaching businesses, and enabling schools to more effectively generate leads for their classes. APIs: Amazon eCommerce, Amazon S3, Commission Junction, Facebook, Google Analytics, Google Maps, Google Webmaster Tools, Google Website Optimizer, LinkShare, PayPal, Twilio, Twilio SMS, WhatCounts, Wikipedia, Zendesk, Zillow. More at our TeachStreet profile.
Handmade Spark: Find the people making great handmade things APIs: BlankSlate, Etsy, PayPal. More at our Handmade Spark profile.
Local Bike Trader: New and used bicycles for sale. APIs: Google AdSense, Google Maps, Oodle, YouTube. More at our Local Bike Trader profile.