Review Scripting News on Alexa.
Observation: To those who claim things like web annotation are necessary, this is exactly the sort of site I've been saying should exist instead. If you must review sites, this is how to do it; elsewhere. Linked in, but elsewhere. No need to worry about Alexa stomping on sites, or affecting the editorial integrity, while at the same time, it still provides a platform for discussion of the site.
Or at least a potential platform. While I grant this is hardly a replacement now, certainly there's no reason Alexa or a similar entity couldn't implement a fully-fledged discussion board, or whatever else, connected to websites. This is the way the web should work.