looking over the zemanta api

http://developer.zemanta.com/wiki

we can use java library with scala loidicus:

http://files.getdropbox.com/u/1127092/zemapi-august2008-java.zip

scala language homepage:

http://www.scala-lang.org/

outside data base (may consider using later)
faviki: http://www.faviki.com/pages/welcome/
sysomos: http://www.sysomos.com/ (thanks Jason)