The Perl Maven site was just recently updated to use Bootstrap 3 (I know, just in time before version 4 is released.) and it got some new navigation tools:





The language links were moved to the right-hand side.



Articles that belong to any of the series linked from the front page show a Prev and a Next button.

and a button.

On the left-hand side they will show the list of all the articles that belong to this series.



For example you can check out the Perl tutorial, the Beginner Perl video course, or the project building an open source clone of search.cpan.org.