Gems in the forest
The internet is a big place, and there are lots of hidden treasures
out there. This page lists some that I have stumbled across.
Steve Mitchell's
"How I became a mathematician". (It is nice that University of
Washington has kept this link active.)
Celebratio Mathematica is
an open access electronic publication aimed at assembling
biographical and related information about mathematicians. There
are tributes, interviews, picture galleries, and a wide range of
other material.
The Clay Mathematics Institute has an interesting
"Collections page" that includes, among other things, 35 years
of Quillen's mathematical notebooks together with some tributes written after his
passing.
The Simons foundation has a collection of video interviews with
mathematicians and scientists called
Science Lives. Some of the interviews are quite touching.
Be warned that the web interface on this site is a little clunky:
to select a chapter in a video it seems one clicks on the title
of the chapter and waits patiently for a few seconds for anything
to happen.
Yale Open Courses.
Probably many leading universities now offer open courses like this,
but here is one such collection (mostly focused on humanities courses).
Dave Barry's substack