Something text heavy, with frequently updated content, that's only success depends on Google indexing and links from other sites.

How about a Flash blog?

Replicating the particulars of html based presentation, while removing functions that people have become accustomed to;
like opening links in a new tab, downloading images, copying text, increasing the text size, ...not to mention accessibility

Genius!

• Tim Wilson (twonline), this was the first Flash blog I encountered;
• Incito blog (beta 0.3), the HTML alike presentation of thie amazed me;
• think swedish (beta), I used to think highly of FI;
• flash-blog (open source project), from the creator's website: "This website is best viewed at 1024x786 resolution".

All of the above demonstrate fantastic skill, and bad practice. The open source one worries me the most