Implementing a simple Client-Server model
1. http://www.hassanpur.com/blog/2010/09/android-development-implementing-a-simple-client-server-model/
2. http://ocaicai.iteye.com/blog/1493768
Android Multipart POST with Progress Bar
http://toolongdidntread.com/android/android-multipart-post-with-progress-bar/