bOing bOing has a note that indicates entering “http” into Google spits out the top PageRanked pages of the Web. I see no reason for this not to be the case. They provide the top ten, I extracted the top 1000. Download: google1k.txt.
What use is it? Well, if you can get links from these pages, your PageRank will probably soar. If you were looking for “important pages on the Web” as a sample for some sort of analysis of Web content, this list might be a worthwhile one. (Though a few of those entries, I suspect, will become dated quickly–e.g., the Johannesburg summit site.)