Polymath sounds like a cool idea BTW, but probably difficult to monetize. Somebody must pay the tutors for producing/curating the content, but people have gotten so used to educational material being free...
Linking to the file from a popular HN thread will likely only worsen the bandwidth issues for the owner :-). Perhaps link to the Github version instead, which is here: https://github.com/gdsmith/jquery.easing
That is a neat way to communicate ;)
Polymath sounds like a cool idea BTW, but probably difficult to monetize. Somebody must pay the tutors for producing/curating the content, but people have gotten so used to educational material being free...