In a previous post I showed a tool for automatically extracting article summaries. Recently I came across a free online service from instapaper.com that does an even better job.
Here is one of my blog articles:
And here are the results when submitted to instapaper:
And here is a BBC article:
And again the results from instapaper:
Instapaper has not made this service public, so hopefully they add it to their official API in future.