Pushnote (with @stephenfry)

Pushnote: What is it? Pushnote is apparently "a browser add-on that enables users to leave comments on any site they visit." Users need to sign up for an account, download an add-on for their browser, and can then comment on sites. For example, if you visit a shopping site, much in the way of e.g. Amazon reviews, you'd be able to leave notes that others can see, as to whether this is a good deal,…