Your link is the most authentic LaTeX experience for beginners: fonts with no preview/screenshot on their homepage... LaTeX users already know it, why make screenshots :D
The blog post does this some justice though, the author does live in the current century, and does have nice examples.
/me is former LaTeX user from uni, not overly fond of it, for usability issues not unrelated to its legacy.
CTAN is the central repository for all TeX packages, it's the natural link to give. If you want to see examples it's as easy as clicking on the relevant package name (eg XCharter) and then click 'Package documentation' which will request the relevant pdf. TeX outputs into PDF so it's the natural medium for demonstrating and documenting things. It's got nothing to do with not 'living in the current century'.
The blog post does this some justice though, the author does live in the current century, and does have nice examples.
/me is former LaTeX user from uni, not overly fond of it, for usability issues not unrelated to its legacy.