I 'power-browse'!
If I'm really wanting to dig around I have to use a laptop / desktop. In forums I go down the latest threads and right click to open a new tab and once down the entire page of posts I open each tab at a time and read them. That way I know I'm not missing anything.
The Xoom is great for casual browsing or very specific browsing. I'm digging the Pulse app that gives you the topics in one screen for as many sites as you like. I have Engadget, BGR, ... all set up in that. It's my go-to morning display of topics.