My recent disappointment is that the 43 Folders Wiki is evidently down for extended extended maintenance. They had claimed it was down for a couple days, to be back July 6th; the "return date" seems to have gotten more nebulous :-(.
They had been suffering quite a bit from "spam," as it were; people logging in (possibly as scripts) to deface the site by adding links to link farms (e.g. - for viagra and the likes). Perhaps the intent is to do a more substantial upgrade to the MediaWiki instance, as there is rumour that modern versions can be set up to be pretty resistant to such attacks.
Regrettably, it means I don't get my "fix" of links to productivity changes for a while yet...