xISBN JSON callback and a GoogleBooks demo

We added a few more features in xISBN service recently: - JSON callback JSON output is native JavaScript, and callbacks are particularly useful for use with web service requests in client-side JavaScript. see: http://xisbn.worldcat.org/xisbnadmin/doc/api.htm#callback - tab-delimited format dissemination This is useful if you need to do a unix cut: $ curl "http://xisbn.worldcat.org/webservices/xid/isbn/0596002815?method=getEditions&fl=title,year&format=txt" | cut -f 2 - a demo of integrating Googlebooks with xISBN JSON callback http://xisbn.worldcat.org/xisbndemo/index.htm