Is this (somewhat) easily possible? I haven't found a published method yet. My current one relies on a Google custom search, but it's not the best.

I have noticed that in the source code where it says 'Posted by [name]', [name] is a span with the class 'fn'. I thought maybe it would be possible to grab that class and display posts by that author somehow.

Any ideas on it? This is on blogspot.com, by the way.