Nice tutorial for http access on Android

http://hmkcode.com/android-internet-connection-using-http-get-httpclient/

Make sure to go to the bottom to look at the asynchronous class.

Handy curl commands for web requests from the terminal

http://www.codediesel.com/tools/6-essential-curl-commands/

On post requests:
http://superuser.com/questions/149329/what-is-the-curl-command-line-syntax-to-do-a-post-request