The big difference is that this application is for tracking what users are doing on other websites outside of facebook. Read the abstract: http://appft.uspto.g

The big difference is that this application is for tracking what users are doing on other websites outside of facebook. Read the abstract: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=1&p=1&f=G&l=50&d=PG01&S1=20110231240.PGNR.&OS=dn/20110231240&RS=DN/20110231240 http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sec...