Programming Resources on using Android Networking APIs

Question

Hi folks,

I'm trying to learn how to use Networking API in Android (or how to make the app network enabled).

I looked in the following places:
1. Coder-Darcey book "Android: wireless application development" has a short chapter on this. But it is for an older version, 1.5, of Android. I'd like to refer to a more recent & more detailed information.
2. Strangely the developer.android.com site has nothing at all on this.
3. Searched SOF on this, & found this question. The link it refers to is WAY too complex for me to understand.

Anyone happen to know a good reference/website/tutorial for this important topic?

Thanks!