Is there a tutorial on troubleshooting non-functioning sites?

[sbk]

I agree on strategy:
1. don't visit sites made useless by javascript.
2. noscript or the equivalent in other browsers. Allow bookmarklets.

If choose to handle js problems, then:
3. look at source or toggle css off to see content hidden by script.
4. for other persons at my location, I bypass with somewhat precisely expression(s). Sometimes I try tracing the desired content. Since I don't really know this "internet stuff", the hunt takes time. Sometimes the actual content loads through a secondary file. So secondary url in the original page loads another url. I wonder if html5 will reduce the chain of loading?

5. I want to return to Web 0.9.9.9.9