Open Text Summarizer is a nifty utility to summarize text.
http://libots.sourceforge.net

For Mandrake users who have urpmi configured.

urpmi ots to install it.

Its written as a proper filter.

cat "your favourite html content page" | ots -r 20 > "your summarypage in html"

So I will not bother to read your big blog now ;-), but summarize it.