xISBN is a library web service that supplies International Standard Book Numbers (ISBNs) associated with individual intellectual works represented in the OCLC WorldCat database. Give it an ISBN, and it returns a list of associated ISBNs.
Foundcity is a social mapping tool for creating a personalized map of your life on-the-fly. Using your mobile phone, you tag or capture photos throughout the day, label them with any words you want, and send them to your map