Following Links may provide a wide range of historical approaches to Ottomans, ranging from military narratives to socio-political and cultural analysis.
Military Naratives
Socio-political Views
Cultural Studies
http://www.enfal.de/osmtarih.htm
Serbia under Ottoman Rule
http://www.wsu.edu:8080/~dee/OTTOMAN/CONTENTS.HTM
Others
http://www.tufts.edu/org/hellenic/m-asia/GREEK.html