How to put pager between multiple views?
IMHO, you might have to rethink your content architecture. The type of pager your are looking for ideally applies to content and not views.
drupal.org uses the book navigation that comes from the book module in Drupal 7 core.

If you do not want to use the book module, you could also go with the Nodequeue module, which provides a similar pager (except the middle link Up).

If you still really need to add such pager to connect the views, you can do it by adding the markup to the view footer to link to other views (and theme it as per the design). Or to make it dynamic, implement hook_views_pre_view (or any similar hook) and change the link from from the footer. Note: This however, is very hard to maintain and not recommended.