Donncha’s just announced the release of WordPress Super Cache (which we’ve been lucky enough to do some testing on).
It’s an absolutely massive plugin as it essentially takes the (already excellent) WP-Cache plugin and, for want of a better word, Movable Types it.
So, now when a page is cached it’s really cached in terms of static html files being served straight from your webserver.
And it’s even WPMU compatible.
So now WordPress will perform as well or better than any other blogging engine for high traffic sites… in every respect!
Great work Donncha… here’s the official plugin page.